An 11 kg object is pressed against a vertical wall with a horizontally applied force of 328 N. What is the coefficient of friction required to keep the book from sliding vertically
down the wall? Round the answer to 2 decimal places (hundredths place)

Write short note on the following ; collision theory, rotation angle and angular velocity, centripetal acceleration, coriolis force, and newton's law of gravitation.

Trumpeter a holds a b-flat note on the trumpet for a long time. person c is running towards the trumpeter at a constant velocity. person b is running away from the trumpeter at the same rate. person d is standing still the whole time. which person hears a frequency that is lower than the b-flat?

Energy is the ability to do work which measures what