Physics Answers

Two waves are traveling at the same speed in a medium. One of the waves has a frequency of 256 Hz and an amplitude of 5.0 m. The other wave has a frequency of 512 Hz and an amplitude of 2.5 m. Find the ratio of their intensities.

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.

1 mole of an ideal monoatomic gas, goes through a cycle in a heat engine. Process Z is isobaric, process X is isochoric and Y is adiabatic find:-

A. A heat absorb or release.

B. Change in internal energy

C. Work done for each of the three process and the whole cycle.

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