Answer:
The First is an example of acceleration, the second is an example of velocity
Gravitational potential energy can be described as m*g*h (mass times gravity times height).
Originally,
15kg * 9.8m/s^2 *0.3 m = 44.1 kg*m^2/s^2 = 44.1 Joules.
After it is moved to a 1m shelf:
15kg * 9.8m/s * 1 = 147 kg*m^2/s^2= 147 Joules.
To find how much energy was added, we subtract final energy from initial energy:
147 J - 44.1 J = 102.9 Joules.
An opera singer breaks a thin glass with only the use of her high frequency voice
Answer:
Answer is a wave increasing in energy as it hits another wave.
Explanation:
I hope it's helpful!
Answer:
They are equal
Explanation:
angle of incidence = angle of reflection
