15. For waves moving at a constant speed, if the wavelength is doubled, the frequency is

doubled

halved

unchanged

quadrupled

A ball is thrown vertically into the air with a initial velocity of 20 m/s. Find the maximum height of the ball and find the amount of time needed to reach the maximum height.

A sphere has a radius of 3.9cm and a density of 7.58 g/cm cubed. What is the mass?

If a 60.1 kg person jumps onto a seesaw at an angle of 22 degrees at a distance of 6.9 m from the fulcrum. How much force will their friend feel if they are sitting 6.6 m on the opposite side of the seesaw?

A moving freight car collides with an identical one that is at rest what happen to the second car after the collison

Where tornadose occur in the usa

An object with a mass of 10.9 kg experiences a force of 18.53 N. What is the acceleration of the object? A. 2.2 m/s2 B. 1.7 m/s2 C. 16.83 m/s2 D. 1.3 m/s2

A proton, starting from rest, accelerates through a potential difference of 1.0 kV and then moves into a magnetic field of 0.040 T at a right angle to the field. What is the radius of the proton's resulting orbit

Which of the following terms are needed to completely describe speed? Check all that apply. A. Units B. Direction C. Number D. Mass

Drivers are able to see objects ahead of them because light travels through windshields.

How are trade winds affected by the coriolis effect