A spaceship accelerates from 0 m/s to 60 m/s north in 3 seconds. What is the acceleration of the spaceship?

a. 20 m/s2

b. 60 m/s2

c. 180 m/s2

d. 1 m/s2

A parallel beam of light of wavelength 450nm is incident normally on a diffraction grating which has 300lines/mm What is the total number of intensity maxima observed?

You are riding in a train that is traveling at a speed of 120 km/h. How long will it take to travel 950 km? Show Work

Work is done when a force A. is exerted while pulling a wagon up a hill B. acts vertically on a cart that can only move horizontally C. is exerted by one team in a tug of war when there is no movement D.

What type of electromagnetic radiation is used in communications devices such as cellular telephones?

What does Newton's second law explain? A. Why the speed of the ride changes B. Why roller coasters have seat belts C. Why roller coasters do not have brakes D. Why roller coasters start with a big hill

How do mountins building and volcanos relate to plate motion at convergent boundaries

A 20kg box is dropped 13m. how much work is done

Suppose a person whose mass is m is being held up against the wall with a constant tangential velocity v greater than the minimum necessary. Find the magnitude of the frictional force between the person and the wall

A ball is being rolled by a normal push of 1000N. it is opposed by friction which has a force of 0.3kN and air resistance which has a force of 23N. Calculate the resultant force.

Consider a Young's two-slit experiment in which the wavelength of light is 37% smaller than the distance between the slits.