Can anyone tell me the final displacement of the puck

Magnitude of total force is found to be 54N.

30 N force is acting at 30° ,then the component in x direction is 30 cos(30°) = 25.98 N

Now the component in y direction = 30 sin(30°) = 15 N

Second, 40 N force is acting at -50°

So, the component in x direction is 40 cos(-50°) = 25.71 N

Also ,the component in y direction = 40 sin(-50°) = -30.64 N

Total force in x direction = 25.98 + 25.71 N = 51.69 N and the total force in y direction = 15 – 30.64 N = -15.64 N

Now the, Magnitude of total force is given by,

( 51.692 + 15.642) 1/2 = 54N.

The total number of forces exerted on an object is the force’s magnitude. The strength of a force increases when all forces are acting in the same direction. As a force is applied to an item from multiple angles, its strength diminishes. Force is a vector quantity since it has a magnitude and a direction.

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Answer:

a concentration gradient.

membrane permeability.

Explanation:

diffusion occurs down a concentration gradient.

and is the free net movement of particles therefore, does not require energy.

membrane permeability is necessary to ensure that the particles can pass through the cell membrane.

53.9 angle, in degrees South of East and 27.20 m is a line connecting your starting point to your final position.

The distance in decimeters between the starting point and the ending position is in a straight line. The distance between an object's original position and its ultimate position is known as displacement.

You walk 16 m straight east and then 22 m straight south. This forms a right angled triangle with a horizontal distance of 16 m, a vertical distance of 22 m and the hypotenuse is the distance between the ending and starting point. Let x represent the distance between the ending and starting point. Using Pythagoras theorem:

x² = 16² + 22²

x² = 256 + 484

x² = 740

Taking square root of both sides:

√x² = √740

x = √740

x = 27.20 m = distance between the ending and starting point.

Now use trigonometry:

sinθ=B/R

sinθ=22/27.20

sinθ= 0.808

θ = 53.9 degree. This is your angle.

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ANSWER:

(a) negative

(b) -120.3 N

STEP-BY-STEP EXPLANATION:

(a)

The net work done on the car is negative because its speed decreases from 19 m/s to 12 m/s

(b)

The acceleration is found from the equationof motion that:

Replacing and solving for a:

Therefore, the force would be:

Answer:

the analysis from are there 331

We know that in a RC circuit the voltage in the capacitor when is charging is given by:

when this is happening the voltage in the resistor is given by:

In both equations V0 denotes the voltage given by the source, R is the resistance of the resistor and C is the capacitance of the capacitor.

We notice that in both expressions the product RC appear, this product is what we call the time constant of the capacitor; and it is important since it determines the time intervals in which the voltage, charges and currents chage in a RC circuit. This means that while the capacitor is charging or discharging the variables mentioned will always have the time constant in their expressions.

The average velocity of Steve's car is 1.17m/s.

Average velocity is the change in position or displacement (∆x) divided by the time intervals (∆t) in which the displacement occurs.

It can be calculated by dividing the total distance of a moving body by the time taken.

According to this question, Steve takes his car out for a joy ride and travels 400 meters north. He then travels 100 meters east and picks up his buddy Frank. They then stop at a 7-11 which is 200 meters south from Frank’s house.

The total distance traveled by Steve is 400m + 100m + 200m = 700m.

Average velocity = 700m ÷ 600s

Average velocity = 1.17m/s

Therefore, 1.17m/s is the average velocity of the car.

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The mass of the an object caused to accelerate at 0.2m/s² by a 43.1 Newton force is 215.5 kilograms.

A force is simply referred to as either a push or pull of an object resulting from the object's interaction with another object.

Force, according to  Newton's Second Law is expressed as;

F = m × a

Where a is acceleration and m is the mass.

Given the data in the question;

Plug the given values into the formula above and solve for m.

F = m × a

43.1kgm/s² = m × 0.2m/s²

m = 43.1kgm/s² / 0.2m/s²

Mass m = 215.5kg

Therefore, the mass of the object is 215.5 kilograms.

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The special and general theories of relativity and Albert Einstein's audacious theory that light is a particle are his most famous works as a physicist and Nobel winner. The most well-known scientist of the 20th century is perhaps him.

In March 1879, he was born in Ulm, Württemberg. He had a great interest in nature and the capacity to comprehend challenging mathematical ideas even as a young man in Munich. He had an unremarkable high school experience, doing exceptionally well in arithmetic but completely failing the classics, which were then thought to be crucial for anybody planning to attend college. He detested school's dreary regimentation and uncreative atmosphere.

The second study established a lot of information regarding the nature of molecules and explained Brownian motion, which is the random jostling of molecules floating in a fluid. 16 years later, this study helped him win the physics Nobel Prize.

However, his third work, "On the Electrodynamics of Moving Bodies," was left out of the award's wording. The third article was the one that would have the biggest impact on contemporary physics. It included Einstein's Special Theory of Relativity, which greatly simplified how we think about how radiation, like light, interacts with matter. Speaking about one body moving and another being motionless has no real significance, according to Einstein. Only in connection to one other can bodies be conceived of as moving;

This specifically implies that, regardless of the frame of reference, electromagnetic radiation's (such as light's) speed remains constant. Even well-known scientists struggled to comprehend this theory because of Einstein's insightful and audacious viewpoint. But over time, when the predictions made by his theory were repeatedly verified, the Special Theory of Relativity finally transformed how scientists thought about matter, space, time, and everything that interacts with them.

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Given,

The ant crawls 72 inches every 6 minutes.

And the table of the time and distance covered by the ant.

From the table, the values of distance are,

d₁=6 inches

d₂=12 inches

d₃=18 inches

And the values of corresponding time are,

t₁=0.5 min

t₂=1 min

t₃=1.5 min

The speed of an object is given by the ratio of the distance covered by the object to the time it takes the object to cover the distance.

Thus the speed of the ant is given by,

On substituting the known values,

Thus the speed of the ant is 12 inches/min

ANSWER:

STEP-BY-STEP EXPLANATION:

We have the following:

The cannon would go further if it is projected at 35 degrees.

The term range has to do with the horizontal distance that is covered by the projectile. We know that the formula for the range of the projectile is;

R = u^2sin2θ//g

R - range of the projectile

θ = the angle of the projection

g = acceleration due to gravity

In the first case;

R = (20)^2sin2(35)/9.8

R = 38.4 m

In the second case;

R = (20)^2sin2(25)/9.8

R = 31.3 m

We would now have to compare the range of the two projectiles.

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Part (i)

Free body diagram of the 1.5 kg block;

Part (ii)

Only 1 force is acting on the pulley is the weight of the block attached with the sting. The torque acting on the pulley is given as,

Here, g is the acceleration due to gravity and the θ is the angle between force F and r (as force is acting tangentially hence θ=90°)

Substituting all known values,

In rotational dynamics torque is given as,

Here, I is the moment of inertia of the pulley (I=2 kg.m²) and α is the angular acceleration.

The angular acceleration is given as,

Substituting all known values,

The angular velocity is given as,

Here, t is the time.

Substituting all known values,

Therefore, the angular velocity of the pulley is 6.174 rad/s.

The angular displacement of the pulley in 4.2 s is given as,

Substituting all known values,

The number of revolutions of the

The floor push up on the crate by a force of 51.75 N and the acceleration of the crate is 4.14m/s².

The angles at which the forces is applied is 26.7°. The coefficient of kinetic friction between the crate and the floor is 0.349. The force applied by terrance is 115 Newton. Total mass of the crate is 20.6 kilograms.

When the force F is applied at an angle A. The force will have two components, one along horizontal, FcosA and one along vertical, FsinA.

As the crate is pulled, the the floor will apply a normal reaction against the crate.

Normal force N is equal to FsinA.

Putting the values,

N = 115×sin(26.7°)

N = 115×0.45

N = 51.75 Newton.

The net acceleration can be calculated as,

Net force on the crate = Ma

Where a is the net acceleration,

Force applied(horizontal) - Friction force = Ma.

FcosA - uN = Ma

Where u is coefficient of friction,

Putting all the values,

115(0.9) - 0.349(51.75)= (20.6)a

103.5 - 18.06 = (20.6)a

a = 4.14m/s².

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Given that there is a cart of mass, m = 0.12 kg moving with initial speed of, u1 = 0.45 m/s and it collides with another cart of mass, m = 0.12 kg with initial speed, u2 = 0 m/s

We have to find the initial and final kinetic energy.

(a) Initial kinetic energy,

According to the conservation of linear momentum,

Here, v is the final speed.

Here, the final speed is 0.225 m/s.

(b) The formula to find kinetic energy is

Substituting the values, we get

Hence the kinetic energy is 6.075 x 10^(-3) J.

The train was going at the speed of 1m/s on the bridge.

The length L of the bridge is 450m.

The length B of the train is 150m.

After entering the bridge,

The last wagon comes out after it has passed ten minutes.

So, the speed of the train can be found out by using the formula,

Speed = Total Distance/total time

Here, total time is 10 minutes,

We know,

One minute = 60 seconds

10 minutes = 10×60 seconds.

Total time = 600 seconds.

Total distance travelled by the train is (L+B) when it comes out from the bridge,

So, putting all the values,

Speed = (450+150)/600

Speed = 600/600

Speed = 1m/s.

So, the speed of the train is 1m/s.

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Alkali and alkaline earth metals invariably produce cations.

Calcium (Ca2+), potassium (K+), and hydrogen (H+) are a few examples of cations.

Positively charged ions are referred to as cations. Less electrons than protons make up cations. An ion can be made up of a single atom of an element (a monatomic ion, monatomic cation, or monatomic anion) or many atoms that are chemically connected to one another (a polyatomic ion or polyatomic cation or anion)

Alkali and alkaline earth metals always create cations, whereas halogens always produce anions. Most nonmetals normally create anions, while the majority of other metals typically produce cations (such as iron, silver, and nickel) (e.g. oxygen, carbon, sulfur)

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Given,

The charge generated, q=0.0012 C

The energy of the Van der Graaf generator, E=1093 J

The time it takes for the generator to produce the given amount of charge, t=.005 s

The current is given by the time rate of the flow of charges. That is,

The voltage is calculated using the formula,

From Ohm's law, the voltage is given by,

On substituting equation (i) and (ii) in equation (iii),

On substituting the known values,

Thus the resistance of the air gap is 3.8×10⁶ Ω

The amount of energy stored in the spring, given it has a spring constant of 80 N/m is 1.6 Joules

First, we shall list out the given parameters from the question. This is shown below:

The energy stored in the spring, given the above data can be obtained as follow:

E = ½Ke²

E = ½ × 80 × 0.2²

E = 40 × 0.04

E = 1.6 Joules

Thus, from the above calculation, we can conclude that the energy stored is 1.6 Joules

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The spring constant for a spring with load of 80 N and which extends by 12 cm is -333.34 N/m for each springs.

What is spring constant?

According to Hooke's Law, when a spring is stretched, the force applied is proportional to the lengthening from the equilibrium length. The formula k = -F/x, where k is the spring constant, can be used to get the spring constant. F stands for force, and x for the variation in spring length.

The spring constant is calculated by dividing the force required to stretch or compress a spring by the lengthening or shortening of the spring. It is used to identify whether a spring is stable or unstable, and consequently, what system it should be employed in.

According to Hooke's law

k = -F/x

Where, k = spring constant

F = force,

x = variation in spring.

As given in the question,

There are two springs which support 80 N force so one will support 40 N

F = 40 N, x = 12 cm, k needs to be found out

putting the values in Hooke's law,

we get, k = -333.34 N/m

Therefore, the spring constant here is -333.34 N/m for each springs

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Newton's laws of motion, which are composed of three basic principles, describe the interaction between an object's motion and the forces acting on it.

These laws can be summarized as follows: A body remains at rest or in motion in a straight line at a constant speed unless moved upon by a force.

The first law states that an object's motion cannot be changed until a force acts on it.

The second law states that an object's force is calculated by dividing its mass by its acceleration.

The third law states that when two objects come into contact, they apply pressures that are equal in size and direction to one another.

Let a represent the system's acceleration.

T1 = M1a .....(1)

T2 − T1 = M2a ....(2)

F2 − T2 = M3a ......(3)

When we combine (1), (2), and (3), we obtain

(M1​ + M2​ + M3​)a = F

or (1 + 2 + 3) a= 6 a = 1 m/s²

Now , T2 = (M1 + M2​)a = (1 + 2)(1) = 3N

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Here, the slope of the graph is negative and constant.

Hence, acceleration is constant and is in opposite direction to its motion.

So, The object whose motion is represented by this graph is moving with constant acceleration.

Motion is defined in physics as the phenomenon through which an object changes its location with respect to time. Motion is mathematically characterized in terms of displacement, distance, velocity, acceleration, speed, and frame of reference to an observer, with the change in position of the body relative to that frame measured as time passes. Kinematics is the branch of physics that studies forces and their effects on motion, whereas dynamics is the branch that studies forces and their effects on motion.

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The gravitational force exerted by the lighter sphere will be proportional to its lighter weight will be 2.24 * 10⁻⁷

The word "force" has a clear definition. At this level, calling a force a push or a pull is entirely appropriate. A force is not something an object "has in it" or that it "contains." One thing experiences a force from another. There is no distinction between living and non-living things in the concept of a force.

The force of attraction between any two bodies is directly inversely correlated to the square of the distance between them and is directly inversely correlated to the product of their masses, according to Newton's universal law of gravitation.

F = GM₁M₂ / R² --- (1)

W = M₁g ------ (2)

equation (1) is divided by equation (2)

⇒ F / W = GM₁M₂ / R²*M₁g

⇒ F / W = (6.67 * 10⁻¹¹ * 178) / (0.23)² = 2.24 * 10⁻⁷

Therefore,  the ratio of the gravitational force between these spheres to the weight of the lighter sphere will be 2.24 * 10⁻⁷

COMPLETE QUESTION: The gravitational constant G was first measured accurately by Henry Cavendish in 1798. He used an exquisitely sensitive balance to measure the force between two lead spheres whose centers were 0.23 m apart. One of the spheres had a mass of 178 kg, while the mass of the other sphere was 0.63 kg. What was the ratio of the gravitational force between these spheres to the weight of the lighter sphere?

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ANSWER:

1.21 m/s

STEP-BY-STEP EXPLANATION:

Given:

One way time = 1.17 min

Return time = 1.67 min

1 minute is 60 seconds, therefore:

One way time = 1.17 min = 1.17 * 60 = 70.2 sec

Return time = 1.67 min * 60 = 100.2 sec

We calculate the speed for each journey, knowing that the distance traveled is 100 meters, like this:

Therefore, the average speed would be:

The average speed is 1.21 m/s

If a boat heads East across a South flowing river. The river is 246 m wide and flows at a rate of 6.4 m/s. The boat sails across at 5.3 m/s, then the time taken by the boat to cross the river would be 46.41 seconds.

The total distance covered by any object per unit of time is known as speed. It depends only on the magnitude of the moving object.

As given in the problem a boat heads East across a South flowing river. The river is 246 m wide and flows at a rate of 6.4 m/s. The boat sails across at 5.3 m/s.

Time taken by the boat to cross the river = 246/5.3

                                                                      =46.41 seconds

Thus, the time taken by the boat to cross the river would be 46.41 seconds.

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Answer:

in optical storage, constant angular velocity (CAV) is a qualifier for the rated speed of any disc containing information, and may also be applied to the writing speed of recordable discs. A drive or disc operating in CAV mode maintains a constant angular velocity, contrasted with a constant linear velocity (CLV)

Here,

potential difference(V)= (2.00±0.02) V;

current (I)=( 5.3 ± 0.1) mA;

Resistance (X) will be given by

Newton's second law states that the force is equal to the rate of change of momentum; for a constant mass, force equals mass times acceleration. In mathematical terms this means that:

where m is the mass and a is the acceleration.

In this case the mass is 2.10 kg and the acceleration is 5.20 m/s²; plugging these values in Newton's second law we have that:

Therefore, the force needed is 10.92 N

A superelastic collision is the the collision in which the potential energy of the system is converted into the kinetic energy such the kinetic energy of the system after the collision is more than the kinetic energy of the system before the collision.

Hence, 3rd option is the correct answer.