PLEASE HURRY If the frequency of a radio wave is 2 cross times 10 to the power of 4 per second, what’s the wavelength?

An object moves from the position +34m to the position -15m in 15 seconds. what is it's total displacement? what is it's average velocity?

Arocket starts from rest and moves upward from the surface of the earth. for the first 10.0 s of its motion, the vertical acceleration of the rocket is given by ay = 12.80 m/s32t, where the +y-direction is upward. (a) what is the height of the rocket above the surface of the earth at t = 10.0 s? b) what is the speed of the rocket when it is 325 m above the surface of the earth?

Compare the horizontal displacement of the two balls as they travel to the ground. what do you observe?