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zysi [14]
3 years ago
11

a skier starts at rest at the top of a hill with 350 J of gravitational potential energy. Assuming energy is conserved, what is

her final kinetic energy at the lowest point
Physics
1 answer:
spayn [35]3 years ago
3 0

Answer:

350Joules

Explanation:

According to law of Conservation of energy, the amount of energy at the used up at the start is equal to that at the end.

The initial energy used up is gravitational potential energy

Final energy at the lowest point is kinetic energy.

If the energy is conserved then it means energy is not used up during the process hence;

Initial Potential energy = Final kinetic energy

If the gravitational potential energy is 350Joules then her final kinetic energy at the lowest point will also be 350Joules

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Complete Question

How many turns are in its secondary coil, if its input voltage is 120 V and the primary coil has 210 turns.

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Answer:

The value  is  N_s  =  21 \  turns

Explanation:

From the equation we are told that

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=>N_s  =  \frac{210}{120}  *  12

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