Green light has a wavelength of 5.5 x 10^-7 m. When it travels through glass it shortens to 1.2 x 10^-7 m. If it has a frequency that doesn't change, 5.4 x 10^14, what is the velocity of the green light laser inside of the glass?

An experiment is designed to test the relationship between the initial height of a basketball before it is dropped to the height of its rebound bounce. the height of the rebound bounce is measured using a scale positioned behind the ball. in the above experiment, which condition would not be controlled? a). the starting height of the ballb). the surface the ball bounces on c). the type of ball d). the method to measure the rebound height of the ball

A2k pendulum has a speed of 1 m/s at a height of 1/2 meter

Awind turbine is rotating counterclockwise at 0.5 rev/s and slows to a stop in 10 s. its blades are 20 m in length. (a) what is the angular acceleration of the turbine? (b) what is the centripetal acceleration of the tip of the blades at t=0s? (c) what is the magnitude and direction of the total linear acceleration of the tip of the blades at t=0s?