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Nookie1986 [14]
3 years ago
12

A skier rides a ski-lift up to the top of the mountain, 1600 m above sea level. If the skier has a mass of 74 kg, how much poten

tial energy does the skier have at the top of the hill (assuming PE = 0 J is at sea level)?
Physics
1 answer:
statuscvo [17]3 years ago
3 0

Answer:

I think it is 1.16 MJ

Explanation:

PE=mgh

PE=(74)(9.81)(1600)= 1,161,504J = 1.16MJ

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What are similarities between the Rorschach inkblots and the TAT test?
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WOULUJUTUL RECIPECUIUS.
3241004551 [841]

The force between the two objects is 19.73 nN.

<u>Explanation: </u>

Any force acting between two objects tends to be directly proportional to the product of their masses and inversely proportional to the square of the distance between the two objects. And this kind of attraction force between two objects is termed as gravitational force.

So if we consider M_{1} and M_{2} as the masses of both objects and let d be the distance of separation of two objects. Then the force between the two objects can be determined as below:

                      \text {Gravitational force}=\frac{G \times M_{1} \times M_{2}}{d^{2}}

As gravitational constant G=6.67 \times 10^{-11} \mathrm{m}^{3} \mathrm{kg}^{-1} \mathrm{s}^{-2}, M_{1} = 20 kg and  M_{2} = 100 kg, while d = 2.6 m, then

                    \text {Gravitational force}=\frac{6.67 \times 10^{-11} \times 20 \times 100}{(2.6)^{2}}=\frac{6.67 \times 20 \times 10^{-9}}{6.76}

Thus, we get finally,

                   \text {Gravitational force}=19.73 \times 10^{-9} \mathrm{N}

As we know, nano denoted by letter 'n' equals to 10^{-9}

So the force acting between two objects is 19.73 nN.

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