What is the gravitational potential energy of a # 5 kg# object on a shelf # 4/9 m # high?

Answer 1

#2xx10J#

Step 1 As physics calculations requires all values to be done in decimals, start by converting #4/9m# into decimal form.
#4/9mcolor(blue)(rArr)0.44m#

Step 2 To find the gravitational potential energy, we can use the formula:

#DeltaE_g#
#=E_"g,final"-E_"g,initial"#
#=mgh_f-mgh_i#
#=mg(h_f-h_i)#
Since #h_f# represents the final height of the object, then it must equal to #0.44m#. Similarly, since #h_i# represents the initial height of the object, then it must equal to #0m#.

Substituting the values into the formula,

#=(5kg)(9.81m/s^2)(0.44m-0m)#
#=21.58J#
#~~color(green)(|bar(ul(color(white)(a/a)color(black)(2xx10J)color(white)(a/a)|)))#
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Answer 2

The gravitational potential energy is approximately 19.6 joules.

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Answer from HIX Tutor

When evaluating a one-sided limit, you need to be careful when a quantity is approaching zero since its sign is different depending on which way it is approaching zero from. Let us look at some examples.

When evaluating a one-sided limit, you need to be careful when a quantity is approaching zero since its sign is different depending on which way it is approaching zero from. Let us look at some examples.

When evaluating a one-sided limit, you need to be careful when a quantity is approaching zero since its sign is different depending on which way it is approaching zero from. Let us look at some examples.

When evaluating a one-sided limit, you need to be careful when a quantity is approaching zero since its sign is different depending on which way it is approaching zero from. Let us look at some examples.

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