1. Which of the following does not play a role in convection in the mantle? A. gravity
B. temperature
C. density
D. magnetism

The desk has a weight of 75 lb and a center of gravity at g. determine the initial acceleration of a desk when the man applies enough force f to overcome the static friction at a and b. also, find the vertical reactions on each of the two legs at a and at b. the coefficients of static and kinetic friction at a and b are ms = 0.5 and mk = 0.2, respectively

If jerome is swinging on a rope and transferring energy from gravitational potential energy to kinetic energy, is being done.

Achlorine atom has 17 protons and 18 neutrons. what is its mass number? what is its atomic number?