Questions from College Physics

Q: Four identical spring scales, A, B, C, and

Four identical spring scales, A, B, C, and D are used to hang a 220.0 N sack of potatoes. (a) Assume that the scales have negligible weights and that all four scales show the same reading. What is th...

Q: In the sport of curling, a player slides a 20.

In the sport of curling, a player slides a 20.0 kg granite stone down a 38 m long ice rink. Draw FBDs for the stone (a) while it sits at rest on the ice; (b) while it slides down the rink; (c) during...

Q: What is the distinction between a vector and a scalar quantity

What is the distinction between a vector and a scalar quantity? Give two examples of each.

Q: A 50.0 kg crate is suspended between the floor and

A 50.0 kg crate is suspended between the floor and the ceiling using two spring scales, one attached to the ceiling and one to the floor. If the lower scale reads 120 N, what is the reading of the upp...

Q: Spring scale A is attached to the ceiling. A 10.

Spring scale A is attached to the ceiling. A 10.0 kg object is suspended from the scale. A second spring scale, B, is hanging from a hook at the bottom of the 10.0 kg object and a 4.0 kg object hangs...

Q: The tallest spot on Earth is Mt. Everest, which is

The tallest spot on Earth is Mt. Everest, which is 8850 m above sea level. If the radius of Earth to sea level is 6370 km, how much does the gravitational field strength change between the sea level v...

Q: By what percentage does the weight of an object change when it

By what percentage does the weight of an object change when it is moved from the equator at sea level, where the effective value of g is 9.784 N/kg, to the North Pole where g = 9.832 N/kg?

Q: A tire swing hangs at a constant 12° angle to the

A tire swing hangs at a constant 12° angle to the vertical when a stiff breeze is blowing. In terms of the tire's weight W, (a) what is the magnitude of the horizontal force exerted on the tire by the...

Q: Two canal workers pull a barge along the narrow waterway at a

Two canal workers pull a barge along the narrow waterway at a constant speed. One worker pulls with a force of 105 N at an angle of 28° with respect to the forward motion of the barge, and the other w...

Q: A large wrecking ball of mass m is resting against a wall

A large wrecking ball of mass m is resting against a wall. It hangs from the end of a cable that is attached at its upper end to a crane that is just touching the wall. The cable makes an angle of &Ic...