Answer:
photon, collides with an electron and uses some of its energy to dislodge the electron.
Explanation:
Answer:
a.
Explanation:
cuz whenever the ball was traveling up the staircase it was building up energy to use (potential energy) unlike b.
<span>1.
</span><span>Efficiency is the
measure of how efficient a process is. It is used to assess the ability of a
process in avoiding waste energy, materials, money and time in doing a
desirable output. It is calculated as;
Efficiency = useful energy ouput / total energy input</span>
<span>.40 = useful work / 200</span>
<span>useful work = 80 joules</span>
Answer:
75 to 63 which is a drop of 12 degrees over a period of 10 seconds.
Explanation:
Answer:
Energy and matter are contained within a closed system.
