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lesantik [10]
3 years ago
15

Please help!! This is a final and I need a good grade

Physics
1 answer:
Ket [755]3 years ago
6 0
Diagram 4 is the correct answer.


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I really don’t know . Dey said I gotta so low sum before I ask another question
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Which form of the law of conservation of energy describes the motion of the block when it slides from the top of the table to th
Mnenie [13.5K]

By definition we have that the energy at the top of the ramp is equal to the energy at the bottom of the ramp. This is due to the principle of energy conservation.

We have then:

E1 = E2

The energy at the top is only potential energy:

E1 = mgh

Where,

  • <em>m: mass </em>
  • <em>g: acceleration of gravity </em>
  • <em>h: vertical height of the ramp </em>

The energy when it falls is transformed into kinetic energy and therefore:

E2 = \frac {1} {2} mv ^ 2

Where,

  • <em>v: object speed. </em>

Therefore we have:

mgh = \frac {1} {2} mv ^ 2

Answer:

The potential energy is transformed into kinetic energy.

mgh = \frac {1} {2} mv ^ 2

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How does a rollercoaster convert potential energy into kinetic energy and then back to potential energy again and again?
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2 years ago
A circuit contains four light bulbs. One light bulb goes out but the other three stays it. This must be an)
Paul [167]

Answer:

It is a parallel connection

Explanation:

In parallel connection the

Cell is not easily used up because the cells share the total current generated together with all bulbs.

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A school bus transporting students to school is an example of
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