Why might it be useful to determine the elements that a planet or moon is made up of?

It's useful because we will then know if travel is possible, what type of planet it is, etc.

Explanation:

It might be very useful to determine the elements that a planet or moon is made up of. To determine the element on the planet, the rock is picked up from the planet.

It might be helpful in determining the atmosphere of the planet. Like the moon has no atmosphere.

By knowing the composition of the planet, one is able to look out the possibility of life on the planet.

a and c

c is 100% but i am confused in a

the small 0.38-kg slider is known to move from position a to position b along the vertical-plane slot. determine (a) the work done on the body by its weight and (b) the work done on the body by the spring. the distance r = 0.70 m, the spring modulus k = 154 n/m, and the unstretched length of the spring is 0.53 m

explanation:

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