Questions from College Physics

Q: A sailboat, tied to a mooring with a line, weighs

A sailboat, tied to a mooring with a line, weighs 820 N. The mooring line pulls horizontally toward the west on the sailboat with a force of 110 N. The sails are stowed away and the wind blows from th...

Q: During a balloon ascension, wearing an oxygen mask, you measure

During a balloon ascension, wearing an oxygen mask, you measure the weight of a 5.00 kg object and find that the value of the gravitational field strength at your location is 9.792 N/kg. How high abov...

Q: Two objects, A and B, are acted on by the

Two objects, A and B, are acted on by the forces shown in the FBDs. Is the magnitude of the net force acting on object B greater than, less than, or equal to the magnitude of the net force acting on o...

Q: How far above the surface of Earth does an object have to

How far above the surface of Earth does an object have to be in order for it to have the same weight as it would have on the surface of the Moon? (Ignore any effects from Earth's gravity for the objec...

Q: Rank the vectors / , And /

Rank the vectors / , And / in order of increasing magnitude. Explain your reasoning. Problems 3, 4, and 14

Q: An astronaut stands at a position on the Moon such that Earth

An astronaut stands at a position on the Moon such that Earth is directly over head and releases a Moon rock that was in her hand. (a) Which way will it fall? (b) What is the gravitational force exe...

Q: Vectors /, and / are shown in the

Vectors /, and / are shown in the figure. (a) Draw vectors / and /, where / and /. (b) Show that / by graphical means.

Q: A hummingbird is hovering motionless beside a flower. The blur of

A hummingbird is hovering motionless beside a flower. The blur of its wings shows that they are rapidly beating up and down. If the air pushes upward on the bird with a force of 0.30 N, what is the fo...

Q: (a) What is the magnitude of the gravitational force that

(a) What is the magnitude of the gravitational force that Earth exerts on the Moon? (b) What is the magnitude of the gravitational force that the Moon exerts on Earth? See Appendix B for necessary in...

Q: Two vectors, each of magnitude 4.0 N, are

Two vectors, each of magnitude 4.0 N, are inclined at a small angle α below the horizontal, as /