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antoniya [11.8K]
2 years ago
13

Johanna is studying what happens to the energy as a ball rolls down a ramp. What is one form of energy that she is studying? gra

vitational potential energy electrical energy chemical energy elastic potential energy
Physics
2 answers:
Rudiy272 years ago
4 0

Answer:

the answer is A

Explanation:

gravitational potential energy

timofeeve [1]2 years ago
3 0

Answer: gravitational potential energy

Explanation:

Gravitational potential energy is refered to as the potential energy that an object has due to its gravitational field, which in turn is being turned into a kinetic energy when there is a fall of such objects.

Since Johanna is studying what happens to the energy as a ball rolls down a ramp, the form of energy here is the gravitational potential energy.

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The magnetic field lines due to a straight, current-carrying wire are circular.

<u>Explanation:</u>

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This magnetic field can perceive by the magnetic line of forces. Now, if we pour some iron dust around a current-carrying conductor, we'll see a concentric circular pattern around the straight wire whose centre will be at the conductor axis. The pattern of these magnetic lines of force may deflect with the variation of current in the wire but remain in the circular format.

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3 years ago
What quantities belong in cells X and Y?
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X: period

Y: tangential speed

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2 years ago
Marc attaches a falling 500-kg object with a rope through a pulley to a paddle wheel shaft. He places the system in a well-insul
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Answer:

4.68227 °C

Explanation:

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The potential energy and heat will balance each other

PE=Q\\\Rightarrowmc m_ogh=m_oc\Delta T\\\Rightarrow \Delta T=\frac{m_ogh}{m_oc}\\\Rightarrow \Delta T=\frac{500\times 9.8\times 100}{25\times 4186}\\\Rightarrow \Delta=4.68227\ ^{\circ}C

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3 years ago
if a car that is 100 feet in front of you on route 70 west slams on the brakes while you are traveling 65 miles per hour (95 fee
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Answer:

t = 1.05 s

Explanation:

Given,

The distance between your vehicle and car, 100 ft

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Since, the velocity is constant, a =0

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Using the second equation of motion,

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Substituting the given values in the equation

                           100 = 95 x t

                             t = 100/95

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Hence, the time left for you to hit the brakes and stop before rear ending them, t = 1.05 s

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