Physics Answers

A surface ocean wave has an amplitude of 0.60 m and the distance from trough to trough is 8.00 m. It moves at a constant wave speed of 1.50 m/s propagating in the positive x-direction. At t=0, the water displacement at x = 0 is zero, and v_y is negative. Assuming the wave can be modeled as a sine wave, write a wave function to model the wave in 3 ways.

Pls do not forget the unit

A pendulum that has a period of 7.01 s and that is located where the acceleration due to gravity is 9.44 m/s² is moved to a location where the acceleration due to gravity is 9.31 m/s². What is its new period?

Round your answer to 5 decimal places.

Pls do not forget the unit

Find the frequency of a tuning fork that takes 5.15 ms to complete one oscillation.

Round your answer to 2 decimal places.

Pls do not forget the unit

If your heart rate is 182 beats per minute during strenuous exercise, what is the time per beat in units of seconds?

Pls do not forget the unit

A wave is modeled by the wave function y(x,t) = (0.51m) sin[(2π/7.9m)(x-(14.3m/s)t)]. What is the period of the wave?

Round your answer to 2 decimal places.

Pls dont forget the unit

What is the wavelength of the waves you create in a swimming pool if you splash your hand at a rate of 1.41 Hz and the waves propagate at a wave speed of 5.54 m/s?

Round your answer to 2 decimal places.

Pls dont forget the unit

A pendulum that has a period of 7.01 s and that is located where the acceleration due to gravity is 9.44 m/s2 is moved to a location where the acceleration due to gravity is 9.31 m/s2. What is its new period?

Round your answer to 5 decimal places.

Pls dont forget the unit

Find the frequency of a tuning fork that takes 5.15 ms to complete one oscillation.

Round your answer to 2 decimal places.

Pls dont forget the unit

A child pulls on a rope attached to a sled with a force of 60 N. The

rope makes an angle of 40° to the ground. (a) Compute the

effective value of the pull tending to move the sled along the

ground. (b) Compute the force tending to lift the sled vertically.

Determine the magnitude of the Poynting vector and the energy per unit time delivered to a wire of length L and cross-section A when electric current I flows in it.