Two objects have masses of #42 MG# and #48 MG#. How much does the gravitational potential energy between the objects change if the distance between them changes from #21 m# to #15 m#?

Answer 1

#W_1,_2= -2,56 *10^-3J#
#W_1,_2=-GMm( 1/r_2-1/r_1)#
below zero because the objects , are closer than before.

#W_1,_2=-GMm( 1/r_2-1/r_1)# #G=6,67*10^-11 Nm^2/(kg)^2# #r_1=21m# #r_2=15m# #M=48 MG=48000kg# #m=42 MG=42000kg# #W_1,_2= -2,56 *10^-3J#
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Answer 2

The change in gravitational potential energy between the objects is 1.008 x 10^12 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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