A car starts from rest and travels east for 50 km, stops and travels west for 30 km to finish the trip. What is the distance traveled (start to finish) of the car during this trip?

An elevator, with a total mass of 454 kg, accelerates downward at . During this time, the tension in the elevator cable is

An elevator is moving upward with a constant acceleration of . An object with mass 10. kg is hanging from the ceiling of the elevator on a string. What is the tension on the string in N?

A ball attached to the end of a string is swung around in a circular path of radius r. If the radius is doubled while the angular speed is kept constant,

In the figure, a force F is being applied to the block with a magnitude such that it moves up along the frictionless inclined place with a constant velocity of 5 m/s. The angle in the figure is θ = 30°, and the mass of the block is 50 kg. What is the magnitude of the normal force exerted by the inclined plane on the block (within 5% accuracy)?

A 65-kg skydiver falls with a terminal velocity of 50 m/s. What is the magnitude of the net force acting on the skydiver?

The fraction of a square kilometer in a square millimeter is

The surface area of a window pane of length 20.5 cm and width 11.9 cm is (given in scientific notation and with the correct number of significant figures):

  What are the advantages and disadvantages of “Focus Groups”? (50 words or more for full credit)

The manager of the Golden Orange Drink Company states that he is very concerned with the continuing decline in sales of the company’s major product, a concentrated orange drink. The manager has asked for your assistance in identifying the reasons for the sales decline. The most appropriate way to begin would be with: