As an interstellar gas cloud shrinks in size, its gravitational potential energy:
a) stays the same at all times.
b) gradually is transformed into other forms of energy.
c) gradually grows larger.

b) gradually is transformed into other forms of energy.

Explanation:

According to the virial theorem, the gravitational potential energy of the the gas cloud is converted into two forms of energy. The collapse provides enough kinetic energy to the particles for hydrogen fusion to occur. Due to the collisions between particles the cloud will heat up. The other part of the gravitational potential energy is released through radiation due to the nuclear fusion.

i think they are all correct

explanation:

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dec 23, 2016 - a load of bricks weighing 680 n a distance of 10 m across a parking lot. if if the worker pushes the cart with a constant force of 209 n, what work= force x distance = 220 n x 10 m = 2200 n.m = 2200 j i don't know where the person got it from, but the initial part, work= force x distance me.