You are in a ‘rotor’ ride at the amusement park. You enter a cylindrical room of radius R and place yourself by the wall. The rotor starts spinning pushing you against the wall. Then, the floor is removed. If your coefficient of static friction is , find the minimum speed of rotation for the cylinder so as to keep you stuck to the wall without your feet touching the floor.

When a neutrally charged atom loses an electron to another atom, the result is the creation of a. two charged atoms. b. two negatively charged atoms. c. two positively charged atoms. d. two neutrally charged atoms.

Astone is dropped with no initial velocity from the top of a cliff and hits the ground a time of 3.9 s later. what is the height of the cliff, in units of meters? you may assume that air resistance is negligible. give the answer as a positive number question 15 a figure skater is rotating at a rate of 200 revolutions per minute. what is the angular speed, in units of rad/s? 200 o 20.9 12000 o 3.33

Convection currents are caused by differences in what two things?