Answer:
zero
Explanation:
In this system, only conservative forces act. Therefore, the mechanical energy, that is, the sum of the kinetic energy and the potential energy, remains constant. When the mass is at its maximum displacement from equilibrium, its potential energy is maximum, therefore, its kinetic energy is minimal, that is to say, that its instantaneous velocity at that point is zero.
Explanation:
If a person is set to walk on a constant speed regardless of the situations then if the person walks a certain distance with no interruptions in an observed time then her speed can be calculated.
When the same person walking through the room momentarily stops to introduce herself then the average speed of the of the person slows down as it happens with the light wave when passes through glass which is an optically denser medium than the air, but the light wave does not stop anywhere in the medium.
It can be more relevant to the person's speed when she walks wading through the water or the person walks through the sand then the person feels resistance in the sand or in water which reduces her overall speed.
Answer: 656 rad/s
Explanation:
Angular frequency is also called radial circular frequency. It measures angular displacement per unit time. It's unit is rad/s. It is also greater than the regular frequency by a factor of 2π. Hence, angular frequency, ω = 2πf
If 1 revolution(20 hole) = 20 cycle per revolution.
Then, 2087.8(cycle) = x revolution
X revolution = 2087.8/20)
X revolution = 104.39 revolution
ω = 2πf
ω = 2 * π * 104.39
ω = 655.98676
ω ~ 656 rad/s
D. 7.03 m/s^2
Acceleration is equal to the change in velocity divided by the elapsed time:
a = 60.0/8.53 = 7.0339
Answer:
The law of conservation of energy says that the total energy of a closed system will remain constant (so its conserved over time). This law is also where you get energy can't be created or destroyed, only converted. One example is a bowling ball hitting pins. Since the bowling ball has kinetic energy (it's moving), hitting the pins will transfer the ball's energy over to the pins. This makes the bowling pins fall over.
