The time taken by the ball to hit the ground will be 14.28 seconds.
Using Newton’s laws of motion, we have
H= (1/2)gt^2. Using H= 1000m
1000= (1/2) x 9.8 x t^2
Hence, t= square root of 2000/9.8 = 14.28 seconds (approx.)
What is gravity?The force that pulls items toward the center of a planet or other entity is called gravity. All of the planets are kept in orbit around the sun by gravity.
The acceleration of gravity near Earth's surface is approximately 9.81 m/s2 (32.2 ft/s2) when air resistance is disregarded, which means that the rate of an object falling freely will increase by 9.81 m (32.2 ft) per second each second.
The gravity is zero at infinite height.
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Which would be more damaging; driving into a massive concrete wall or driving at the same speed into a head-on collision with an identical car traveling toward you at the same speed?.
Driving into a massive concrete wall and driving into a head-on collision with an identical car traveling toward you at the same speed, both does equal amount of damage.
When the car hits into a wall, it comes to a sudden stop. Similarly, if the car hits another identical car with same speed, the same situation occurs in which the car comes to a sudden stop because the momentum of one car will be cancelled by the momentum of the other car. Either way, due to rapid deceleration the car comes to a dead stop.
The damage could have varied if the car travelling towards you had more or lesser speed than your car. Due to the same speed, both the cars had same momentum. If the speed differs, momentum differs and there will be motion after collision resulting in lesser damage in one car than the other.
Therefore, driving into a massive concrete wall and driving into a head-on collision with an identical car traveling toward you at the same speed, both does equal amount of damage.
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For motion from s=+2cm to −5cm, then to +12cm, calculate the total displacement change.
The total displacement change from s=+2cm to −5cm, then to +12cm is + 7 cm
Displacement = Final position - Initial position
Final position = + 2 - 5 + 12 cm = + 9 cm
Initial position = + 2 cm
Displacement = ( + 9 ) - ( + 2 )
Displacement = + 7 cm
Displacement is the instantaneous distance between initial and final position. It is a vector quantity. So adding a sign is necessary for displacement.
Therefore, the total displacement change is + 7 cm
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an exploding charge applies 4000N of force on a 0.025kg bullet as it moves down a 0.5m long horizontal barrel. how much energy does the bullet have when it leaves the barrel?
The energy the bullet have when it leaves the barrel is 2000 J
How to determine the energy.The energy of the bullet when it leaves the barrel can be obtained as illustrated below:
Force (F) = 4000 NDistance (d) = 0.5 mEnergy (E) = ?Energy is defined as the ability to do work.
Energy (E) = Work (W)
Work (W) = force (F) × distance (d)
W = Fd
Thus,
E = W = Fd
E = 4000 × 0.5
E = 2000 J
From the above calculation, we can conclude that the energy of the bullet is 2000 J
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A student pulls a cart towards right on a rough surface. What is tye direction of the frictional force acting on the cart?
When a student pulls a cart towards the right on a rough surface, the direction of the frictional force acting on the cart will be to the left in the opposite direction of motion of the cart.
What is frictional force?Frictional force is a force that acts to oppose the motion of an object moving over another object.
Frictional force is a contact force as it requires contact between the two surfaces.
Frictional force acts at the surface of separation of the objects.
Frictional force causes wear and tear in moving parts of machinery.
However, frictional force enables the movement of objects over flat surfaces, for example, it aids in walking.
In conclusion, frictional force acts in an opposite direction to the motion of an object moving over another object.
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A ball is thrown horizontally out the window of a tall building with a velocity of 7.3 m/s
from a height of 206 m. How far from the base of the building will the ball land?
gravity=10m/s²
A branch of physics called kinematics, which originated in classical mechanics, defines how points, bodies, and systems of bodies move without taking into account the forces that are responsible for their motion.
Let's go over the four basic kinematic equations of motion with constant acceleration:
s = ut + ½at^2 …. (1)
v^2 = u^2 + 2as …. (2)
v = u + at …. (3)
s = (u + v)t/2 …. (4)
where an is acceleration, s is distance, u is beginning velocity, v is final velocity, and t is time.
To determine the horizontal distance traveled in this instance, we first need to determine the time it takes for the ball to fall vertically to the ground.
Knowing u = 0, a = g = 9.81 m/s2, and s = 5 m for the vertical drop, we can use equation (1) to obtain
s = ut + ½at^2
5 = 0 +4.905t^2
t = √(5/4.905) = 1.01s
Now that we have t, we can calculate the horizontal distance.
s = ut + ½at^2
s = 35(1.01) + 0 (no horizontal acceleration) (no horizontal acceleration)
s = 35.35m
The ball thus travels 35.35 meters before striking the ground.
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Would is divide or subtract or add or multiply
Answer:
I think it would be multiplied or added.
if you drive your car at 20 miles per hour and then accelerate at a rate of 3 miles per hour every second how fast will you be going after 8 seconds? PLEASE I NEED HELP NOW
The velocity of the car after 8 seconds of the drive will be 20.0066 miles/hr.
What is Acceleration?
Acceleration is defined as the rate of change of velocity with respect to time.
Given that you are driving your car at 20 miles per hour and then accelerate at a rate of 3 miles per hour every second.
We can calculate the acceleration using the formula -
a = Δv/Δt
a = (v - u)/t
Now -
t = 8 seconds = 0.0022 hrs
Then -
3 = (v - 20)/0.0022
3 x 0.0022 = v - 20
v = 20.0066 miles/hr
Therefore, the velocity of the car after 8 seconds of the drive will be 20.0066 miles/hr.
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I need help with my homework asap. Please
The molecules receive more energy and move faster after they have been heated up.
What is conduction?The term conduction has to do with the process by which heat is transferred along a body by the movement of the particles of the substance. There are three main modes of heat transfer and these are;
ConductionConvectionRadiationNow, we can see that before the flame was introduced, the molecules of the substances all maintained the same average position. The molecules do not move except there is a supply of energy.
Now, when we turn on the flame, we would notice that we have imparted additional energy to the particles that are in the solid when we heat it up. As such, the particles move more freely and we can see that as the motion of the particles in the image. The portion that shows the particles after the heating shows that they are now translating.
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A wire is stretched so that its resistance becomes 16 times the initial value before stretching . The radius of the wire after stretching will be _____
A) 1/4th of the initial value
B) 4 times the initial value
C) 2 times the initial value
D) 1/2 times the initial value
The radius of the wire with a resistance that is 16 times its original value after stretching will be 1 / 2 times the initial value ( D )
R = ρ L / A
L = V / A
A = π r²
R = Resistance
L = Length
A = Area
V = Volume
r = Radius
R = ρ L / A
R = ρ V / A²
R = ρ V / π² [tex]r^{4}[/tex]
Rearranging for r,
r = [tex]\sqrt[4]{}[/tex] ( ρ V / π² R )
This is the radius of the wire initially
After stretching, R' = 16 R
R' = ρ V / π² [tex]r'^{4}[/tex]
r' = [tex]\sqrt[4]{}[/tex] ( ρ V / π² 16 R )
r' = 1 / 2 [tex]\sqrt[4]{}[/tex] ( ρ V / π² R )
r' = 1 / 2 * r
Therefore, the radius of the wire after stretching will be 1/2 times the initial value ( D )
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a 10-ft beam, weighing 1360 lb, is to be moved to the left onto the platform. a horizontal force p is applied to the dolly, which is mounted on frictionless wheels. the coefficients of friction between all surfaces are μs
The resistive force of friction (Fr) divided by the normal or perpendicular force (N) pushing the objects together yields the coefficient of friction (fr), which is a numerical value. The formula fr = Fr/N serves as a representation of it.
In terms of math, μ is equal to F/N, where F stands for frictional force and N for normal force. The coefficient of friction has no dimensions because both F and N are measured in units of force (such as newtons or pounds).
The static friction coefficient and the kinetic friction coefficient are the two different types of friction coefficients. While the latter is frequently referred to as the dynamic or sliding friction coefficient, the former is sometimes known as the starting friction coefficient.
A force that holds an object at rest is called static friction. When an object reaches its maximum size, it begins to move. Static friction has an identical magnitude in the opposite direction to any little force applied to an object. If the force is increased, eventually the object will begin to move after the maximum static friction value is reached.
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when a metal is exposed to 75.9 nm ultraviolet radiation, it emits an electron with kinetic energy 7.60 ev. what is the threshold frequency for this metal? (1.000 ev
The threshold frequency for this metal is, based on its photoelectric effect, [tex]2.11x10^{15} Hz[/tex].
The threshold frequency of the metal is the frequency of electromagnetic radiation that would cause its kinetic energy to be equal to 0. Using the photoelectric effect, the threshold energy can be calculated from the difference between the photon energy invested and the electron's kinetic energy, because the excess energy invested is transformed into kinetic energy. With that in mind, the energy of the photon is:
E = hc/λ = hν
where h is Planck's constant, c is the speed of light, λ is the wavelength of the photon and ν is the frequency of the photon.
[tex]E = 6.626x10^{-34}Js * 3x10^{8}m/s / 75.9x10^{-9}m = 2.62x10^{-18} J[/tex]
Because 1 eV is equal to [tex]1.602x10^{-19}[/tex] J, the kinetic energy of the electron is:
[tex]7.60 x 1.602x10^{-19}J = 12.1752x10^{-19}J = 1.22x10^{-18} J[/tex]
The threshold energy is:
[tex]2.62x10^{-18}J-1.22x10^{-18}J = 1.40x10^{-18}J[/tex]
Now, because E = hν, then ν = E/h, so the threshold frequency will be:
[tex]1.40x10^{-18} J/6.626x10^{-34}Js = 2.11x10^{15}Hz[/tex]
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URGENT!! ILL GIVE
BRAINLIEST! AND 100 POINTS
Which statement about this atom is FALSE?
Use the Periodic Table to help you.
A. The mass of the atom is 35 AMU
B. The atom has an overall change of 0
C. The atomic number of this atom is 18
D. This is a chlorine atom
Answer:
B.
Explanation:
Chlorine has a charge of is -1 and the atomic number of Chlorine is 17
Are leaders born or made? What factors influence a person’s leadership style? FIRST TO ANSWER BRAINLIEST RIGHT
Answer:
Leaders are made but ultimately both can be true.
Explanation:
Recent scientific studies suggest that leadership is 30% genetic and 70% learned. These findings propose that leaders are made not born. Ultimately, the answer is that both are true: a person can be born with natural leadership abilities, and someone can learn how to be a good leader at work. Leadership is a set of skills that can be learned by training, perception, practice and experience over time. Leadership learning is lifetime activity. Good leaders seek out development opportunities that will help them learn new skills.
Answer:
Well it's the past which really impacts
Explanation:
Most of the time a leader is made, it's not definite that a person has characteristics of a leader since his/her childhood. It's the impact mostly which determines and the way your parents raised you or are you independent who can solve problems on his or her own. If you have seen the world and have learned lessons from your mistake it's easy for you to have leadership qualities because you know what are the risks of something or is something worth your time.
That's what I think
HELP!!Use complete sentences to answer these questions.
1. Share an example from your house or neighborhood that represents a physical change occurring.
2. Share an example from your house or neighborhood that represents a chemical change occurring.
It is a multistep plan or strategy that allows you to achieve your goals.
1.
a person holding the spinning bike wheel lifts it with her right hand and pushes down with her left hand in an attempt to rotate the wheel. explain what happens to the bicycle wheel in three to four sentences of conceptual writing.
ANSWER-wheel turns increasingly angularly in the direction of the person as it approaches them.
Explained: Due to force, torque will result in the following.
torque is equal to force divided by the perpendicular distance and applied in the direction of the subject.
Changes are caused by this torque. in angular momentum
Thus, as a result of new angular momentum pointing more in that direction, the wheel advances in that direction.
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There is a torque created in the wheel as a result of the applied forces. An object's angular momentum will rotate into the wheel as torque has a tendency to modify it.
The person holding the spinning bike wheel lifts it with her right hand and presses it down with her left hand, trying to turn the wheel. as a result, the wheel will experience torque.
The force that can turn an item about its axis is measured as torque. In linear kinematics, force is what makes an object move faster.
The object's mass times its speed is what determines its linear momentum. linear Momentum is a property of any mass-moving object. Because it works with rotating objects, angular momentum only differs in one respect.
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please help ASAP! Brainliest to the best answer
Answer:
1. A series circuit consisting of:
12 V electrical source
open switch
two light bulbs
10 Ω resistor
2. A parallel circuit consisting of:
9.0 V electrical source
open switch
three 5.0 Ω resistor
3. A circuit consisting of:
three 1.5 V cells connected in parallel
open switch
two light bulbs connected in series
two 15 Ω resistor connected in parallel
4. Draw a circuit diagram consisting of a
9.0 V battery, an ammeter, and a 25 Ω
resistor in series. Include a voltmeter
that is measuring the potential difference
across the resistor.
5. Draw a circuit diagram consisting of a
battery made up of two 1.5 V cells, one
closed switch, two lamps, and an
ammeter in series. Show the direction in
which the current flows.
6. Draw a circuit diagram consisting
of a battery made up of four 1.5 V
cells, one closed switch, one lamp, two
0.50 Ω resistors in series, and a
voltmeter.
Show the direction in which
the current flows.
In a laboratory test, a car of mass 1200 kg is driven into a concrete wall
A video recording of the test shows that the car is brought to rest in 0.36 s when it
collides with the wall. The speed of the car before the collision is 7.5 m/s
The impact force of the car during the collision on the wall is 25,000 N.
What is force experienced by an object?
According to Newton's second law of motion, the force experienced by an object is proportional to the product of mass and acceleration of the object.
Mathematically, the force experienced by an object is given as;
F = ma
where;
m is the mass of the objecta is acceleration of the objectAcceleration of an object is given as;
a = v/t
where;
v is the velocity of the objectt is time of motionF = ma
F = m(v/t)
F = (mv)/t
F = (1200 kg x 7.5 m/s) / (0.36 s)
F = 25,000 N
Thus, we can conclude that the force experienced by the car during collision on the wall has a magnitude of 25,000 N. This is also the stopping force of the car.
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The complete question is below;
In a laboratory test, a car of mass 1200 kg is driven into a concrete wall
A video recording of the test shows that the car is brought to rest in 0.36 s when it
collides with the wall. The speed of the car before the collision is 7.5 m/s. Find the impact force of the car.
how do the kinetic energy of each of the following objects compare to one another? i. object of mass 2 kg traveling at constant velocity of 2.5 m/s in the x x direction ii. object of mass 1 kg traveling at constant velocity of 5 m/s in the x x direction iii. object of mass 1 kg traveling at constant velocity of 3 m/s in the x x direction and -4 m/s in the y y direction
Kinetic energy of each of the following objects compared like K₃ = K₂ > K₁ or K₃ = K₂ = K₁.
Kinetic energy of an object of mass, m and speed, v is
K = 1/2 mv²
(1) Given, m = 2kg, v = 2.5m/s
So, K = 1/2 mv²
K₁ = 1/2 × 2×(2.5)²
K₁ = 6.25 J
(2) Given, m = 1kg, v = 5m/s
K = 1/2 mv²
K₂ = 1/2 × 1×(5)²
K₂ = 12.5 J
(3) Given, m = 1kg, Vx = 3m/s, Vy= 4m/s
v = [tex]\sqrt{Vx^{2} + Vy^{2} }[/tex]
v = 5m/s
K = 1/2 mv²
K₃ = 1/2 × 1×(5)²
K₃ = 12.5 J
Hence, K₃ = K₂ > K₁ or K₃ = K₂ = K₁ .
Kinetic energy is the type of energy which is due motion of an object. Kinetic energy is the product of half of mass and velocity square. Its unit Joule and is represented by J.
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Which options identify a key point of cell theory?
(Select all that apply.)
Cells carry out functions that maintain life.
Living things are nde of one or more cells.
Cells come only from other living cells.
Living things are only made of more than one cell.
Answer:
Cells carry out functions that maintain life.
Living things are nde of one or more cells.
Explanation:
1) cells are building blocks of life. Cells make up tissues, tissues make up organs, organs make up organ systems...
2)microorganisms like bacteria are unicellular which means made of one cell. Human beings however are made of trillions and trillions of cells.
person on a cruise ship is doing laps on the promenade deck. On one portion of the track the person is moving north with a speed of 3.9 ms relative to the ship. The ship moves east with a speed of 12 ms relative to the water.
The resultant speed of the person on the cruise ship is 12.62 m/s.
What is resultant speed?The resultant speed of an object is the single speed which can effectively represent two or more speed of the object.
The magnitude of the resultant speed of the person on a cruise ship is calculated as follows;
Vr² = Va² + Vb²
where;
Vr is the resultant speed of the personVa is the speed of the person to the northVb is the speed of the person to the eastSubstitute the value of the north speed and east speed to determine the resultant speed of the person on the ship.
Vr = √Va² + Vb²
Vr = √[(3.9 m/s)² + (12 m/s)² ]
Vr = 12.62 m/s
Thus, for a person on a cruise ship is doing laps on the promenade deck at a speed of 3.9 m/s to the north and the speed of the ship 12 m/s to the east, the resultant speed is 12.62 m/s.
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The complete question is below:
person on a cruise ship is doing laps on the promenade deck. On one portion of the track the person is moving north with a speed of 3.9 ms relative to the ship. The ship moves east with a speed of 12 ms relative to the water. Find the resultant speed of the person
a transformer has 1,400 turns in the primary coil and 100 turns in the secondary coil. if the primary coil is connected to a 120 v outlet and draw 0.04 a, what is the current of the secondary coil?
0.56 A is the current of the secondary coil.
transformer is the device that transfer electric energy from one AC circuit to another.
we know that ;
I ∝ 1/n;
where I IS CURRENT and n is NUMBER OF TURNS.
(I) secondary = X A
(n) secondary = 100
(I) primary = 0.04 A
(n) primary = 1400
USING THIS-----> I ∝ 1/n;
=>
0.04 A/X A =100/1400
=>X=0.56 A
as the current in the transformer is inversely proportional to the number of turns so 0.56 A is the current in the secondary coil.
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Two vectors A1 and A2 each of magnitude are inclined to each other such that their resultant is equal to √3Afind the resultant of vectorA1 1 and -A1
When A1 and -A1 are of the same magnitude but the opposite direction, their total will be zero.
what is vector?
A quantity or phenom with independent property for the both magnitude and direction is called a vector. The term may also refer to a quantity's mathematical or geometrical representation. Velocity, electromagnetic fields, and weight are just a few examples of vectors in nature.
0 is the intersection of line A1 and -A1.
Both the matrices A1 and A2 have the same magnitude, which itself is A
|A1| = A , |A2| = A
the result of A1 and A2 is 3 A
Hence, 3 A = (A2 + A2 + 2A2 cos x)
3A2 = 2A2 + 2A2 cos x
=> 1/2 = cos x
x = 60°
A1 and A2 are at an angle of 60 °.
Now, we must find the product of A1 and -A1. These vectors create a 180° angle.
the product of A1 and -A1 is (A2 + A2 + 2A2 cos 180°
=> √(2A²-2A²)
=> 0
When A1 and -A1 are of the same magnitude but the opposite direction, their total will be zero.
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The most dangerous particles in polluted air are those with diameters less than because they can penetrate deeply into the lungs. a 15-cm-tall closed container holds a sample of polluted air containing many spherical particles with a diameter of and a mass of . how long does it take for all of the particles to settle to the bottom of the container?
The time taken for all of the particles to settle to the bottom of the container is 0.18 seconds.
What is time of motion?The time of motion of an object is the time taken for the object to travel from its initial position to final position.
Mathematically, the formula for calculating the time of motion of an object is given by;
h = vt + ¹/₂gt²
where;
h is the height of fall of the objectv is the initial vertical velocity of the objectt is time of motion of the objectg is acceleration due to gravityFor, this given question, we have the following parameters;
height of fall of the particles, h = 15 cm = 0.15 minitial vertical velocity of the particle, v = 0acceleration due to gravity, g = 9.8 m/s²h = ¹/₂gt²
2h = gt²
t² = 2h/g
t = √(2h/g)
t = √(2 x 0.15 / 9.8)
t = 0.18 s
Thus, we can conclude that, since the height of fall of the particle is small, it will take the particle short time to fall.
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TRUE or FALSE- The three categories that
American Imperialism sought to enhance were
political, military, and economic.
TRUE
FALSE
1
It is a true statement that the three categories that American Imperialism sought to enhance were political, military, and economic.
What is imperialism?The term imperialism has to do with a situation in which a country that tends to be more powerful continues to control a smaller country owing to the depends of the smaller country on the larger country for aid even though it is fully independent.
We can see that imperialism continues around the world especially in the developing and the less developed countries and this has continued to be an object of intense debate in many quarters.
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If you bake a cake at high elevation, where atmospheric pressure is lower than at sea level, you will need to adjust the recipe. You will need to cook the cake for a longer time, and you will need to add less baking powder. (Baking powder is a leavening agent. As it heats, it releases gas bubbles that cause the cake to rise.) Explain why those adjustments are necessary.
There is less atmospheric pressure, molecules face less resistance. Therefore, as it warms up, more gas bubbles will rise, and as a result, less baking powder is needed to create the same rising of the cake.
What impact does atmospheric pressure have on baking?Two main consequences of low air pressure on baked foods are: They will dry out more quickly because liquids boil at lower temperatures at high altitudes, which causes them to rise more easily and lose moisture faster. Gas bubbles have a tendency to form huge, uneven pockets in a batter or dough as leavening progresses more quickly.
Briefing:The pressure drops as altitude rises. As a result, as the atmospheric pressure drops, the molecules in the solution just need to overcome the lesser amount of resistance to leave the solution. Consequently, when the temperature required for the molecules to depart the solution drops, the boiling point of solutions also drops. Therefore, it takes longer to prepare food effectively when water boils at a lower temperature because the heat that water stores is lower. When it comes to baking powder, the less baking powder we use, the less resistance the molecules must overcome because to the lower ambient pressure. Therefore, as it warms up, more gas bubbles will rise, which will result in less cake rising.
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An object travels in a complete circle with circumference 50m over 10 seconds. Identify the correct statement about this trip.
a. speed and average velocity are both positive
b. speed and average velocity are both zero
c. speed is positive and average velocity is zero
d. speed is zero and average velocity is positive
The true statement is that speed and average velocity are both positive.
What is the speed?The term speed has to do with the ratio of the distance that has been covered by a body with time. Now, we know that the distance is a scalar quantity, this implies that we do not take the direction to account anytime that we have to deal with the speed of a body. Thus the speed has been shown to be a scalar.
On the other hand the velocity of a body is the ratio of the displacement to the time taken by the object and the displacement is a vector quantity thus we have to take the direction account when looking at the velocity.
We know that the direction of the velocity changes as it moves round the circle. This implies that the velocity of the body changes and its positive. The speed is also positive.
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under what conditions can carrying capacity reach equilibruim
Answer:
The carrying capacity is defined as the environment 's maximal load, which in population ecology corresponds to the population equilibrium, when the number of deaths in a population equals the number of births (as well as immigration and emigration). The effect of carrying capacity on population dynamics is modelled with a logistic function.
Hence: When food, water, and space used by a population stay stable over
time.
Explanation:
Hope this helps.
For resistors of 10 Ω, 15 Ω and 20 Ω, two resistors are connected in parallel and one in series. Calculate all the possible total resistance values.
Given the resistors:
10Ω, 15 Ω and 20 Ω
Two resistors are connected in parallel and one in series.
Let's calculate all the possible total resistance values.
When resistors are connected in parallel, the equivalent resistance is:
[tex]\frac{1}{R_4}=\frac{1}{R_1}+\frac{1}{R_2}[/tex]After finding the equivalent resistance value in parellel, we now add the resistance value with the resistance in series:
[tex]R_{eq}=R_4+R_3[/tex]• When 10Ω and 15Ω are connected in parallel and 20Ω in series, we have:
R1 = 10 Ω
R2 = 15 Ω
R3 = 20 Ω
[tex]\begin{gathered} \frac{1}{R_4}=\frac{1}{10}+\frac{1}{15}=\frac{3+2}{30}=\frac{5}{30}=\frac{1}{6} \\ \\ R_4=6\Omega \\ \\ \text{Now to find the total resistance, we have:} \\ R_{eq}=R_4+R_3=\text{ 6 }\Omega\text{ + 20}\Omega \\ \\ R_{eq}=26\text{ }\Omega \end{gathered}[/tex]When 10Ω and 15Ω are connected in parallel and 20Ω in series the total resistance is 26 Ω.
• When 10Ω and 20Ω are connected in parallel and 15Ω in series, we have:
R1 = 10 Ω
R2 = 20 Ω
R3 = 15 Ω
Hence, we have:
[tex]\begin{gathered} \frac{1}{R_4}=\frac{1}{R_1}+\frac{1}{R_2}=\frac{1}{10\Omega}+\frac{1}{20\Omega}=\frac{2+1}{20}=\frac{3}{20}\Omega \\ \\ R_4=\frac{20}{3}\Omega\approx6.7\Omega \\ \\ \text{Thus, we have:} \\ R_{eq}=R_4+R_3=6.7\Omega+15\Omega=21.7\Omega \end{gathered}[/tex]When 10Ω and 20Ω are connected in parallel and 15Ω in series the total resistance is 21.7 Ω.
• When 20Ω and 15Ω are connected in parallel and 10Ω in series, we have:
R1 = 20 Ω
R2 = 15 Ω
R3 = 10 Ω
Thus, we have:
[tex]\begin{gathered} \frac{1}{R_4}=\frac{1}{R_1}+\frac{1}{R_2}=\frac{1}{20}+\frac{1}{15}=\frac{3+4}{60}=\frac{7}{60} \\ \\ R_4=\frac{60}{7}\approx8.6\Omega \\ \\ R_{eq}=R_4+R_3=8.6+10=18.6\Omega \end{gathered}[/tex]When 20Ω and 15Ω are connected in parallel and 10Ω in series the total resistance is 18.6Ω.
ANSWER:
• When 10Ω and 15Ω are connected in parallel and 20Ω in series the total resistance is 26 Ω.
,• When 10Ω and 20Ω are connected in parallel and 15Ω in series the total resistance is 21.7 Ω.
,• When 20Ω and 15Ω are connected in parallel and 10Ω in series the total resistance is 18.6Ω.
Physics question doubt!
Answer: I think it's 7.60 184
Explanation: If I did my math right it's 7.60 184
After looking at sound waves in this way, why do you think people prefer to view sound waves transverse waves rather than
longitudinal?
Only surface waves and shear waves, which require a solid for propagation, are transverse waves. Solids also support longitudinal waves. Fluids like air and water can only support longitudinal waves.That's why people prefer to view sound waves transverse waves rather than longitudinal.