Answer:
atmospheric
Explanation:
I think it’s atmospheric if I, wrong please tell me and I will fix it thanks!
In the circuit shown in Fig. E26.17, the voltage across the 2.00 Ω resistor is 12.0 V. What are the emf of the battery and the current through the 6.00 Ω resistor?
The emf of the battery of the given circuit is 18 volts and the current through the 6 ohm resistor is 3A.
What is ohm's law?In a current carrying conductor, the voltage difference V is directly proportional to the current I through the conductor. The constant is called the resistance R.
i.e V=IR.
Emf of the battery is equal to e = V1 +V2
Current through 2 ohm resistor, I2 = V2 /R
I2 = 12/2
I2 =6 A
Voltage through 1 ohm resistor V1 = I1 R
V1 = 6 x 1 =6 volts
Emf of the battery E = 6+12 =18 volts.
The current through 6 ohm resistor is
I = 18 /6 = 3 A
Thus, emf of the battery is 18 volts and the current through the 6 ohm resistor is 3A.
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A circular loop is initially placed in a uniform magnetic field perpendicular to the field lines and then removed quickly from the field. The induced emf causes the electric charge flow in the loop . Explain the force on the induced current due to the original field
The induced emf is found as -0.0531 V. When the flux coupling with a conductor or coil changes, electromotive Force, or EMF, is said to be induced.
What is induced emf?Emf is the production of a potential difference in a coil as a result of changes in the magnetic flux passing through it.
From Lenz law,the the induced EMF is found as;
[tex]\rm e=- \frac{\triangle \phi _B}{\triangle t } \\\\\rm e=- \frac{A\triangle B}{\triangle t } \\\\ e= -\frac{\pi r^2(0-1.10)}{0.15} \\\\ e=-0.0531 \ V[/tex]
Hence,the induced emf is found as -0.0531 V.
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Before his weight lifting event Andrew would like to get a quick boost of energy. Which source of nutrition should Andrew consume prior to the match to get the boost of energy he desires
The source of nutrition that Andrew should consume prior to the match to get the boost of energy he desires is carbohydrate.
What is nutrition?Nutrition refers to the organic process by which an organism assimilates food and uses it for growth and maintenance.
There are 6 major classes of nutrients and they are as follows:
CarbohydratesProteinsLipidsVitaminsMineralsAmong these classes of nutrients, carbohydrates provide the fastest source of energy in the body and hence, can be recommended for an athlete like Andrew who is preparing for a weight lifting endeavor.
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If a 40.1 g piece of iron at 652 °C is dropped into a sample of 328 g of water at 32.4 °C, what will the final temperature be after thermal equilibrium is established? Assume that no heat is lost during the process. specific heat capacity of iron is 0.45 J/g C and water is 4.184 J/g C. SHOW YOUR WORK.
The final temperature of the mixture after thermal equilibrium is reached given the data is 40.4 °C
Data obtained from the questionMass of iron (M) = 40.1 gTemperature of iron (T) = 652 °C Specific heat capacity of iron (C) = 0.45 J/gºCMass of water (Mᵥᵥ) = 328 gTemperature warm water (Tᵥᵥ) = 32.4 °CSpecific heat capacity of the water (Cᵥᵥ) = 4.184 J/gºC Equilibrium temperature (Tₑ) =? How to determine the equilibrium temperatureHeat loss = Heat gain
MC(T – Tₑ) = MᵥᵥCᵥᵥ(Tₑ – Tᵥᵥ)
40.1 × 0.45(652 – Tₑ) = 328 × 4.184(Tₑ – 32.4)
18.045(652 – Tₑ) = 1372.352(Tₑ – 32.5)
Clear bracket
11765.34 – 18.045Tₑ = 1372.352Tₑ – 44464.2048
Collect like terms
11765.34 + 44464.2048 = 1372.352Tₑ + 18.045Tₑ
56229.5448 = 1390.397Tₑ
Divide both side by 1390.397
Tₑ = 56229.5448 / 1390.397
Tₑ = 40.4 °C
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What related fitness components are improved in dancing?
7
What was the dependant variable? * is it 1,2 or 3?
(1 Point)
1. Type and weight of the block
2. increase in energy transferred
3. Thermometer used
Answer:
Increase is energy transferred
Explanation:
Increase in energy or ∆E depends upon the mass or type of the blockIt also depends upon the surface area etc The thermometer used is useless in this case .Option B is correct
An object weighing 6 kg moving at a speed of 12 m / s was stopped by a force of 18 newton. At what time does the subject accelerate?
Answer:
F ΔT = Δ(M V)
Change in momentum is equal to applied force* time
Δ(M V) = 6 kg * 12 m / s = 72 kg-m / s
ΔT = 72 kg-m/s / 18 kg-m/s^2 = 6 s after 6 sec it will tend to rebound
Multiple point perspective is a system of perspective in which __________________ a. there are a number of vanishing points, usually created by multiple objects. b. there are two vanishing points. c. all lines within the picture lead to a single vanishing point. d. all the sides are measured full size and scaled with the drawing at 30° to the horizontal. please select the best answer from the choices provided a b c d
Multiple point perspective is a system of perspective in which: A. there are a number of vanishing points, usually created by multiple objects.
What is multiple point perspective?Multiple point perspective can be defined as a system of perspective in which each items (objects) has a number of interacting lines with different vanishing points.
This ultimately implies that, a multiple point perspective is a system of perspective which is created with a number of vanishing points, that are usually created by multiple objects.
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Answer:
A
Explanation:
A bullet with a mass of 0.04-kg is traveling horizontally at 1400 m/s when it strikes a stationary target that is balanced on the top of a wooden post. The target has a mass of 9.96-kg. The target, with the bullet embedded, is knocked off of the post and moves to the right. How fast is the target with the bullet lodged in it traveling?
The speed of the target with the bullet lodged in it is 5.6 m/s.
What is speed?This is the rate of change of distance.
To calculate the speed of the target and the bullet lodged, we use the formula below.
Formula:
V = mu/(m+M)............. Equation 1Where:
V = Speed of the target and the bulletm = mass of the bulletM = mass of the targetu = Initial speed of the targetFrom the question,
Given:
m = 0.04 kgu = 1400 m/sM = 9.96 kgSubstitute these values into equation 1
V = (0.04×1400)/(0.04+9.96)V = 56/10V = 5.6 m/sHence, the speed of the target with the bullet lodged in it is 5.6 m/s.
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How much power is produced if you have a current carrying a 441 j of enegy in 0.19 s?
Answer:
the answer is 2321 watts
Explanation:
power= energy/time
power= 441/0.19=2321.05watts
at constant temperature and pressure, gas volume is directly proportional to the
Answer:
number of moles of gas.
Explanation:
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What is Wave Optics?
Thanks (:
the branch of optics that studies interference, diffraction, polarization, and other phenomena for which the ray approximation of geometric optics is not valid.
What is the world’s biggest source of electricity production?.
Coal, followed by gas is the largest source of electricity
Coal is the world’s biggest source of electricity production.
The world's biggest source of electricity production is Coal. Coal is a fossil fuel that is mined from the ground and is the largest source of energy for the generation of electricity worldwide. Coal is burned to produce heat, which is then used to boil water and produce steam. The steam drives turbines that generate electricity.
There are other sources of electricity as well, such as natural gas, nuclear energy, hydroelectric power, and renewable energy sources like wind and solar power.
However, coal is the largest source of electricity production in the world.
A student says that the two terms speed and frequency of the wave refer to the same thing. What is your response?
Answer:
He is wrong!
Explanation:
Frequency refers to how many wave lengths pass in a second and speed is how fast the wave is traveling for example the speed of light goes really fast but has a mid-level frequency.
Hope this helps! ;-)
The frequency of a wave is 0.05 Hz and the wavelength is 20 m. What is the velocity of the wave?
Answer:
1m/s
Explanation:
wave velocity=frequency × wave length
=0.05 × 20
=1 m/s
if you do 40 j of work in 4s, how much power did you generate?
Explanation:
GIVEN :
Work done(W) = 40 J
Time(t) = 4 s
Power (P) = ?
We know that:
W = P×t
Therefore,
P= W/t
=40/4
= 10 W
Hope it helps
. Define density. How can you calculate density of an irregular shape solid body.
Answer:
a measure of the amount of information on a storage medium
Density= mass
volume
it symbol is roh
Explanation:
To find density
we need the mass and volume we have to devide both of the
What does nuclear fission have to do with the birth of stars?
Answer:
Fission is the process by which large nuclei (like Uranium) split apart releasing energy. Fusion is the joining of nuclei to make larger nuclei, with the release of energy. A ball of contracting interstellar gas becomes a star like the Sun when fusion reactions start in its center. Then, we say "a star is born."
Answer: When light element atoms are crushed under enough pressure for their nuclei to fuse, a star is formed. All stars are the consequence of a balance of forces: gravity compresses interstellar gas atoms until fusion reactions begin.
Explanation:
When current first leaves the battery, how much voltage does it have
Answer:
depends on the voltage of battery
Explanation:
for example if you connect a battery of 6V,6V will be provided
which of these galaxies would you most likely find at the center of a large cluster of galaxies?
Answer:
a large elliptical galaxy
Explanation:
5.
A girl uses a 3.0 m long ramp to push her 110 kg motorbike up to a trailer, the floor of which is 1.2 m above the ground.
How much work is done on the motorbike?
we can use 3 formula for inclined plane
W=-ΔPE
W=ΔKE
W=mg sinθ. d
let's use the third formula
sinθ = 1.2 : 3
sinθ = = 0.4
W = m.g. sinθ. d
W = 110 x 10 x 0.4 x 3
W = 1320 J
On the Earth, these convection cells form because of the __________ heating of the Earth and changes in pressure.
Group of answer choices:
even
equal
unequal
consistent
On the Earth, these convection cells form because of the unequal heating of the Earth and changes in pressure. Option C is correct.
What is a convection cell?A convection cell is a phenomenon that happens when there are density changes inside a liquid or gaseous medium.
The essential characteristics of a convection cell are rising and/or falling currents, which are caused by density variations.
These convection cells arise on Earth as a result of the Earth's uneven heating and pressure variations.
On the Earth, these convection cells form because of the unequal heating of the Earth and changes in pressure.
Hence,option C is correct.
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Medium and heavy duty vehicles often require increased braking in situations where friction brakes overheat and fail. This can be addressed by using a(n):
Medium and heavy duty vehicles require a better braking option hence they ought to have an exhaust brake.
What is a brake?A brake is used to slow down or stop an automobile. When the brake is applied, the speed of the automobile continues to decrease until it comes to a complete halt.
Friction brakes are apt for light vehicles that may not have the tendency to overheat. However, heavy duty vehicles may overheat often and do require an exhaust brake.The exhaust brake is most fitted for heavy duty vehicles and diesel engines.
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What is the mass of an object that accelerated at 5 m/s^2 and with a force or 45 N ?
The mass of the accelerated object is 9kg.
What is Newton's second law of motion?According to this law, the force is equal to the product of mass of the object and its acceleration.
F =ma
Given is the force F =45 N and the acceleration is 5 m/s², then the mass will be
m = F/a
m = 45/5
m =9kg
Thus, the mass of the object is 9kg.
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a table tennis ball launcher fires a tennis ball. what do we know about the impulse on both of the objects?
Answer:
As we know by Newton's III law that if an action force is applied on an object then the reaction force of same magnitude in opposite direction will act on the other.
So here when ball is shot using launcher then the force will be same on launcher as well as ball so we can say
now since force is of same magnitude for both both then we will have
so from above we can say that both ball and launcher will have same impulse but opposite in direction.
Now since ball will have less mass so here it will have more speed while launcher is heavy in mass so its speed is slow or very small as comapre to ball.
Think of a career that is obsolete (no longer exists). Explain why the career is no longer needed.
Answer:
here
Explanation:
Lector
Resurrectionist
Switchboard Operator
Log Driver
milkmen
Lamplighter
Ratcatcher
Pre-radar Listener
ice cutter
human alarm clock
bowling pin setter
Select the most accurate summary of kaku’s argument. newton’s scientific study transformed knowledge of the ocean and encouraged countless transformative inventions. newton’s discoveries led to the invention of machines and the beginning of an industrialized society. newton’s invention of the steam engine revolutionized transportation around the world. newton’s followers invented the machines that later stimulated factory productivity and success.
The most accurate summary of kaku’s argument is Newton’s discoveries led to the invention of machines and the beginning of an industrialized society.
What was Isaac Newton's most important discovery?According to her, “two bodies attract each other with a force proportional to their masses and inversely proportional to the square of the distance separating their centers of gravity”. With this discovery, Newton eliminated dependence on divine action and began modern science.
The text is about the achievements of Newton that led to the industrial progress, having strong impact on many generations incuding modern generations.
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Answer:
Newton’s discoveries led to the invention of machines and the beginning of an industrialized society.
Explanation:
A 5-kg ball rolling at a speed of 3 m/s strikes a 2-kg ball at rest. The 5-kg ball then comes to a stop and the 2-kg ball begins to roll forward. Determine how fast the 2-kg ball is moving.
Velocity: _ m/s
Answer:
7.5m/s
Explanation:
Law of conservation of momentum: momentum in a system before collision equals to that after collision/
5kg*3m/s=2kg*v
15kgm/s=2kg*v
v=7.5m/s
The half-life of radium-226 is 1,600 years and the half-life of carbon-14 is 5,730 years. in one to two sentences, mathematically prove that the decay constant for radium-226 is larger than the decay constant for carbon-14.
please and thank you :)
Explanation:
-226 of 1600
-14 of 5730
-226×16÷100= -36.16
-14×57.3÷100= -802.2
The decay constant for radium-226 is larger than the decay constant for carbon-14.
What is decay constant?Decay constant of radioactive substance is its probability of decay per unit time.
Decay constant for radium-226 is [tex]1.4*10^{-11} /sec[/tex] and for carbon-14 is [tex]3.8*10^{-12} /sec[/tex].
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what do you know in climate change?
Climate change is the reason for a lot of factors such as:
Heat-trapping Greenhouse Gases And The Earth's Climate
Greenhouse Gases
Reflectivity or Absorption of the Sun's Energy
Changes in the Earth's Orbit and Rotation
Variations in Solar Activity
Changes in the Earth's Reflectivity
Volcanic Activity
There's a lot more that I could list, but hopefully this will do.