Answer:
The correct answer should be
A. 20 Joules
Explanation:
I'm taking the K12 Unit Test: Energy - Part 1 right now
A=mgh
m=300g=0.3kg
g=9,81 m/s^2
h=10m
A=29.43J
Radio waves. Giant satellite-dish antennas pick up long-wavelength, high-frequency radio waves. ...
Microwaves. Because cosmic microwaves can't get through the whole of Earth's atmosphere, we have to study them from space. ...
Infrared. ...
Visible light. ...
Ultraviolet light. ...
X rays. ...
Gamma rays.
It's momentum is twice as much.
I like playing basketball. So I'm the object in motion. Until an unbalanced force comes and hits me I fall and stay at rest.