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kompoz [17]
3 years ago
13

A worker assigned to the restoration of the Washington Monument is checking the condition of the stone at the very top of the mo

nument. A nickel with a mass of 0.005 kg is in her shirt pocket. What is the gravitational potential energy (GPE) of the nickel at the top of the monument?
Physics
2 answers:
REY [17]3 years ago
8 0

Answer:

GPE ≈ 8.3 J

Explanation:

m = 0.005 kg

g = 9.80 m/s2

h = 169.164 m

GPE =?

GPE = mgh

GPE = (0.005 kg)(9.8 m/s2)(169.164 m)

GPE = 8.289 (kg)(m/s2)(m)

GPE = 8.289 (kg)(m2/s2)

GPE = 8.289 J

GPE ≈ 8.3 J  

Svetllana [295]3 years ago
7 0

Answer:

The gravitational potential energy of the nickel at the top of the monument is 8.29 J.

Explanation:

We can find the gravitational potential energy using the following  formula.

GPE=mgh

Identifying given information.

The nickel has a mass m=0.005 \,kg, and it is a the top of Washington Monument.

The Washington Monument has a height of h=555 \, ft, thus we need to find the equivalence in meters using unit conversion in  order to find the gravitational potential energy.

Converting from feet to meters.

Using the conversion factor 1 m = 3.28 ft, we have

h = 555 \, ft \times \cfrac{1 \, m}{3.28 \, ft}

That give u s

h = 169.2 \, m

Finding Gravitational Potential Energy.

We can replace the height and mass on the formula

GPE=mgh

And we get

GPE=(0.005)(9.8)(169.2) \, J

\boxed{GPE=8.29 \,J}

The gravitational potential energy of the nickel at the top of the monument is 8.29 J.

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