Other Physics Answers

A wave is represented by y = (3.00m) sin Ɵ (2.5t -3.14x). Find the (a) amplitude, (b) angular frequency, (c) frequency, (d) wave number, (e) wavelength, and (f) speed of the wave.

A standing wave on a string has a frequency of 100 Hz, a wavelength of 0.04 m, and an amplitude of 2 mm. The transverse velocity of the point x = 0.02 m, is:

Find the velocity of a transverse wave in a string which is 4.0 m long with a

total mass of 20 g when under a tension of 100N.

How long does it take a child on a swing to complete one swing if her center of gravity is 4.00 m

below the pivot? Explain your answer. (

An automobile moves with a constant speed of 120 km/hr around a track of 50 m diameter.

What is the angular velocity and the period of motion? (

As you pass a freight truck with a trailer on a highway, you notice that its trailer is bouncing

up and down slowly. It is more likely that the trailer is heavily loaded or nearly empty. Explain your

answer.

What are the conditions that must be met to produce a simple harmonic motion?

What is a simple harmonic motion? What are the relevant quantities that should be considered

in simple harmonic motion? Identify and explain these quantities

At what temperature will the root mean square velocity of the molecule quarter that if it is at a temperature of 32 degree Celsius?

A steel rod on a bridge must be made to withstand a pull of 5000 lbs. Find the diameter of

the rod assuming the factor safety of 5 and the ultimate stress of 64000 psi. (15 pts)