20 point physics question! : d

a solar powered car converts energy into energy.

a) light, chemical
b) light, mechanical
c) mechanical, light
d) electrical, mechanical

! ( don't answer this just for the points, and try to explain your answer.)

Science and technology are interdependent. advances in one lead to advances in the other. give an example of this phenomenon.

Aturntable that spins at a constant 74.0 rpm takes 3.10 s to reach this angular speed after it is turned on. find its angular acceleration (in rad/s2), assuming it to be constant, and the number of degrees it turns through while speeding up.

First answer marked as brainiest which is the correct equation describing the first law of thermodynamics? a) when the internal energy of a system changes, it equals the amount of heat added plus the work done. b) when work is done by the piston, it is equal to the heat added plus the change in internal energy of the system. c) when heat is added to the system, it is equal to the amount of work done by the piston plus the change in internal energy of the system.