A tennis ball moving at a speed of 4 m/s, collides with a bowling ball at rest. The tennis ball bounces back in the direction opposite to the initial velocity, and the bowling ball moves very slowly too. Which object experiences the greater magnitude impulse during the collision?

Part of an electric circuit is shown in the figure. The known resistances are R1 = [R1] Ω and R2 = 15 Ω. The currents in the circuit are i = 2.0 A and i1 = 0.8 A, as indicated. What is the value of the resistance R3 (in Ω)?

The work done by the centripetal force acting on an object moving at a constant linear speed is:

A fighter jet of mass 9600 kg is moving at a speed of 72 m/s. If its total energy is 2.60×108 J, how high from the ground is it?

A projectile is launched from the ground at an angle of 15° above the horizontal. If the projectile is launched at the same velocity at an angle of _____, it will travel the same horizontal distance.

Two point masses are placed 10.0 cm apart and attract each other with a force of 10.0 N. Find the force of gravitational attraction between the masses when they are placed 5.0 cm apart.

An object is accelerating _____.

If no forces are acting on a moving object, the object will continue to move with constant:

John pulls a sled on a frictionless surface with a force of 60 N at an angle of 37o above the horizontal. If he pulls it a distance of 12 m, the work he does is:

A car with a mass of 1000 kg is moving on an un-banked ramp with a radius of 100 m. What is the maximum speed the car can move without skidding if the coefficients of static and kinetic friction are 0.80 and 0.60 respectively?