Answer:
the workenergy principle is measured in joules
When an earthquake strikes usually seismic waves carry the energy outward (a.) With the greatest power at the focus and as the seismic waves travel outward they become more and more weak until they disappear.<span />
The component that could Chang leave out and still light up the bulb is the switch.
Answer:
4 m/s
Explanation:
T = Tension
m = Mass of string
Velocity of wave in string is given by
For first cable
For second cable
The speed of wave in cable two is 4 m/s
You don't need to do any calculations, you are already given that n=1.5
n is index of refraction. it's 1.5