An electric field of 2.0x10^4N/C is directed along the positive x-axis. a. What is the electric force on an electron in the field?
b. What is the electric force on a proton in the field?

An inclined plane wrapped around a metal shaft is a a. lever b. screw c. pulley d. wedge

How many hydrogen (h) atoms are in one molecule of sulfuric acid, h2so4? (1 points) 1 2 4 7

The rocket is fired vertically and tracked by the radar station shown. when θ reaches 66°, other corresponding measurements give the values r = 32700 ft, r¨ = 85 ft/sec2, and θ˙ = 0.019 rad/sec. calculate the magnitudes of the velocity and acceleration of the rocket at this position.