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zalisa [80]
3 years ago
9

1. A crane lifts a 75kg mass a height of 8 m. Calculate the gravitational potential energy

Chemistry
1 answer:
koban [17]3 years ago
6 0

Answer:

GP.E = 5880 j

Explanation:

Given data:

Mass = 75 kg

height = 8 m

Potential energy = ?

Solution:

The formula for gravitational potential energy is

GPE = mgh

m = mass in kilogram

g = acceleration due to gravity

h = height in meter above the ground

Formula:

GP.E = mgh

Now we will put the values in formula.

g = 9.8 m/s²

GP.E = 75 Kg × 9.8 m/s²× 8 m

GP.E = 5880 Kg.m²/s²

Kg.m²/s² = j

GP.E = 5880 j

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Answer: 1.41725 X 10^{24} atoms

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One male of any gas containing no. of atoms$=6.023\times10^{23}$

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The chemical formula of a compound is the notation indicating the number of atoms of each element present in a compound.

The chemical formula of a compound tells us the type of elements in the compound, the number atoms of each element in the compound and in what proportion these elements are present.

According to this question, manganese II phosphate has the chemical formula of Mn3(PO4)2.

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