A sphere has a mass of 8200 kg and a radius of 90 cm and floats with nearly zero friction on a thin layer of pressurized water. Suppose you pushes on the sphere tangent to its surface with a steady force of F = 75N and that the pressured water provides a frictionless support. Required:
How long will it take her to rotate the sphere one time, starting from rest?

In the first law of thermodynamics, triangle e=q-w, what does q stand for

Amoving company collects data about couches they move and displays the data in a table. the force along the ramp, the angle of the ramp, and the height the couch is raised to are shown. which statements correctly compare the work done to move the couches? check all that apply. the same amount of work is done for couches 1 and 3. the same amount of work is done for couches 2 and 3. the work for couch 1 is greater than the work for couch 2. the work for couch 2 is less than the work for couch 3. the work for couch 3 is greater than the work for couch 1. the work for couch 2 is greater than the work for couch 1.

What happens to an isotope during radioactive decay?