A cannonball is shot from a cannon at a launch angle of 63° and an initial velocity of 147 m/s. The gravitational acceleration is -9.8 m/s2. Assuming NO air
resistance, how long will it take the cannonball to reach the peak of its trajectory?

Which type of microscope would allow the viewer to see ribosomes inside a cell?

Do you agree with scientist’s prediction about the warming of alaska and other polar regions?

A1,700kg car is being used to give a 1,400kg car a push start by exerting a force of 140n the impulse on the smaller car during the 30.0s of contact is +670kg*m/s. what is the impulse of the smaller car on the larger car? -814 kg*m/s 0kg *m/s -670kg*m/s -550kg*m/s