George and Frank are moving their piano for the big concert. George is pushing the piano with 25 N of force. Frank is pulling the piano with 20 N of force. What is the combined force on the piano? A. 45 N to the right
B. 5 N to the left
C. 5 N to the right
D. 45 N to the left

If a sphere and a cure have the same mass and are propelled up a ramp with the same force, which would travel father up the ramp? explain.

An electron is ejected into a horizontal uniform e⃗ field at a parallel horizontal velocity of v0. assume the electron's initial position x0, initial velocity v0, time t, magnitude of electric field e, electron's mass m, and the magnitude of the electron's charge |e|. ignore the force that earth exerts on the electron. assume the e⃗ field is in the same direction as the initial velocity. part a define the equation for the electron's velocity. express your answer in terms of the variables v0, |e|, t, e, and m.

What types of radiation make up the electromagnetic spectrum?