False
Energy in the form of motion is kinetic energy
Stored energy is called potential energy
The answer would be an alpha particle because the beta particle doesn't carry the amount of protons and neutrons.
You did 150.j of work lifting a 120.N back
Answer:

Explanation:
Let's start finding the frequency heard by the bystander due to the moving car. We need to use Doppler effect here:
v is the speed of sound (v = 343 m/s)
So, we have:
Now, the beat frequency heard by the bystander is the combine of the frequencies, it means the difference between them. Therefore the equation is given by:
I hope it helps you!