Questions from College Physics

Q: A roller coaster car is towed up an incline at a steady

A roller coaster car is towed up an incline at a steady speed of 0.50 m/s by a chain parallel to the surface of the incline. The slope is 3.0%, which means that the elevation increases by 3.0 m for ev...

Q: Vector A in the drawing is equal to (a)

Vector A in the drawing is equal to (a) C+D+E (b) B+C+F (c) D+F (d) A+B+F

Q: Which vector sum is not equal to zero? (a

Which vector sum is not equal to zero? (a) C+D (b) C+D+E (c) C+F (d) B+C (e) B+F

Q: You place two different coins on the cover of your physics book

You place two different coins on the cover of your physics book and then slowly lift the cover. Assuming the coefficients of static friction are the same, which is true? (a) The more massive coin star...

Q: Explain the need for automobile seat belts in terms of Newton's first

Explain the need for automobile seat belts in terms of Newton's first law.

Q: A crate containing a new water heater weighs 800 N. The

A crate containing a new water heater weighs 800 N. The crate rests on the basement floor. Tim pushes horizontally on it with a force of 400 N, but it doesn't budge. What can you conclude about the co...

Q: A crate containing a new water heater weighs 800 N. Tim

A crate containing a new water heater weighs 800 N. Tim and a friend push horizontally on the water heater with a force of 600 N as it slides across the floor with constant velocity. What can you conc...

Q: A woman stands on an airport's moving sidewalk and moves due west

A woman stands on an airport's moving sidewalk and moves due west at constant velocity. The frictional force on the woman is _____. (Ignore air resistance.) (a) zero (b) kinetic and to the west (c) k...

Q: How does the magnitude of the normal force N compare with the

How does the magnitude of the normal force N compare with the object's weight W? A child (weight W) sits on a level floor. The normal force on the child is (a) equal to W (b) greater than W (c) less t...

Q: How does the magnitude of the normal force N compare with the

How does the magnitude of the normal force N compare with the object's weight W? A car (weight W) is parked on an incline. The magnitude of the normal force on the car is (a) equal to W (b) greater t...