A horizontal rope is tied to a 44.97 kg box on frictionless ice. What is the tension in the rope if: the box is at rest?

A frictionless pulley with zero mass is attached to the ceiling, in a gravity field of 9.80 m/s2. Mass M2=0.100 kg is being accelerated downward with a=1.10 m/s2. Calculate the mass m1.

The figure shows the acceleration-versus-time graph of a particle moving along the x-axis. Its initial velocity is v_0x = 9.00 m/s at t_0 =0\;{\rm s}. What is the particle's velocity at t = 2.00 s?

A man dropped a rock off a cliff, 6.6 seconds later I heard it splash, how high is the cliff?

David is driving a steady 28.0 {\rm m/s} when he passes Tina, who is sitting in her car at rest. Tina begins to accelerate at a steady 2.70 {\rm m/s^2} at the instant when David passes. How far does Tina drive before passing David? what is her speed when she passes him?

Two point charges Q1 = +4.50 nC and Q2 = -2.80 nC are separated by 33.0 cm. (a) What is the electric potential at a point midway between the charges?

How much heat in calories is generated when a 1.0 kilogram metal head hammer strikes a solid rock.

A soccer player kicks a ball with an average force of +1300 N, and her foot remains in contact with the ball for a time of 8.0 10-3 s. What is the impulse (magnitude and direction) of this force? Magnitude N s Direction Perpendicular to the average force. In the same direction as the...

A volleyball is spiked so that its incoming velocity of +4.3 m/s is changed to an outgoing velocity of -17 m/s. The mass of the volleyball is 0.29 kg. What impulse does the player apply to the ball? kg m/s

"A 61.0-kg person, standing on a diving board, dives straight down into the water. Just before striking the water, her speed is 5.20 m/s. At a time of 1.55 s after entering the water, her speed is reduced to 1.10 m/s. What is the average net force (magnitude and direction) that acts on...