What is the acceleration of a ball rolling down a ramp that starts from rest and travels 0.9 m in 3 s?

When you speak or sing, you force air through your?

Calculate the electrical energy expended in a device across which the circuit voltage drops by 40.0 volts in moving a charge of 2 coulombs. A) 20 B) 80

A lander vehicle on a distant planet records the fact that it takes 2.86s for a ball to fall freely 11.66m, starting from rest. What is the acceleration due to gravity on that planet? Express your answer in m/s^2. I am getting - 1.

Where do stars from?

Assume that you land at an airport with the altimeter set to 29.92 instead of the current setting of 30.00. What will the altimeter read if the field elevation is 2,000 feet MSL?

ll of mass m is thrown vertically upward with an initial speed of v0. It experiences a force of air resistance given by F = - kv, where k is a positive constant. The positive direction for all vector quantities is upward.

When combing your hair, you scuff electrons from your hair onto the comb. is your hair then positively or negatively charged? how about the comb?

A 4 kg mass is in free fall. What is the velocity of the mass after 11 seconds

Pascal's principle explains the viscosity of motor oil used in cars. True or False?

A (n) ... is a material that takes in a wave when the wave hits it