Decide whether the following statements are true or false. Place a T on the blan

Question

Decide whether the following statements are true or false. Place a T on the blank line if the statement is true, and place an F if the statement is false. 1. In simple harmonic motion, the restoring force does not depend on the velocity In simple harmonic motion, the potential energy can be larger than the kinetic energy The displacement of a mass oscillating on a spring is given by x(t) = A cos[ar+d]. If the initial displacement is zero and the initial velocity is in the negative x direction, then the phase constant is /2. As we watch, a spaceship passes us in time At. The crew of the spaceship measures the passage time and finds it to be to, we say that to is the proper time for the passage and it is smaller than At A meter stick moves at 0.95c in the direction of its length through a laboratory According to measurements taken in the laboratory, its length is 3.2m

Explanation / Answer

1. T

2. F

3. F

4. F

5. F its length will be

L=LO(1-v2/c2)1/2 Where LO is length in moving frame i.e. 1m, So L=.312m

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