Questions from College Physics


Q: Find the ratio of Earth's gravitational force on a satellite when it

Find the ratio of Earth's gravitational force on a satellite when it is on the ground to the gravitational force exerted when the satellite is orbiting at an altitude of 320 km.

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Q: In the drawing, what is the vector sum of forces

In the drawing, what is the vector sum of forces if each grid square is 2 N on a side? Problems 6, 12, and 15

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Q: Using the masses and mean distances found in Appendix B, calculate

Using the masses and mean distances found in Appendix B, calculate the net gravitational force on the Moon (a) during a lunar eclipse (Earth between Moon and Sun) and (b) during a solar eclipse (Moo...

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Q: Rank the vectors /, and / in order of increasing

Rank the vectors /, and / in order of increasing magnitude. Explain your reasoning.

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Q: A binary star system consists of two stars of masses M1 and

A binary star system consists of two stars of masses M1 and 4.0M1 a distance d apart. Is there any point where the net gravitational field due to the two stars is zero? If so, where is that point?

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Q: In the drawing, what is the vector sum of forces

In the drawing, what is the vector sum of forces if each grid square is 2 N on a side? Problems 7, 8, 13, and 16

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Q: A box sits on a horizontal wooden ramp. The coefficient of

A box sits on a horizontal wooden ramp. The coefficient of static friction between the box and the ramp is 0.30. You grab one end of the ramp and slowly lift it up, keeping the other end of the ramp o...

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Q: A book that weighs 10 N is at rest in six different

A book that weighs 10 N is at rest in six different situations. Blue arrows indicate forces exerted on the book by an object that is not shown. Rank the situations according to the magnitude of the no...

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Q: Two of Robin Hood's men are pulling a sledge loaded with some

Two of Robin Hood's men are pulling a sledge loaded with some gold along a path that runs due north to their hideout. One man pulls his rope with a force of 62 N at an angle of 12° east of north and t...

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Q: A crate of potatoes of mass 18.0 kg is on

A crate of potatoes of mass 18.0 kg is on a ramp with angle of incline 30° to the horizontal. The coefficients of friction are μs = 0.75 and μk = 0.40. Find the normal force (magnitude) and the frict...

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