Questions from College Physics

Q: A map suggests that Atlanta is 730. miles in a direction

A map suggests that Atlanta is 730. miles in a direction 5.00° north of east from Dallas. The same map shows that Chicago is 560. miles in a direction 21.0° west of north from At...

Q: The eye of a hurricane passes over Grand Bahama Island in a

The eye of a hurricane passes over Grand Bahama Island in a direction 60.0° north of west with a speed of 41.0 km/h. Three hours later the course of the hurricane suddenly shifts due north, and its sp...

Q: The helicopter view in Figure P1.70 shows two people pulling

The helicopter view in Figure P1.70 shows two people pulling on a stubborn mule. Find (a) The single force that is equivalent to the two forces shown and (b) The force a third person would have to exe...

Q: A commuter airplane starts from an airport and takes the route shown

A commuter airplane starts from an airport and takes the route shown in Figure P1.71. The plane first flies to city A, located 175 km away in a direction 30.0° north of east. Next, it flies...

Q: A tennis player on serve tosses a ball straight up. While

A tennis player on serve tosses a ball straight up. While the ball is in free fall, does its acceleration (a) Increase (b) Decrease (c) Increase and then decrease (d) Decrease and then increase, or (e...

Q: (a) Find a conversion factor to convert from miles per

(a) Find a conversion factor to convert from miles per hour to kilometers per hour. (b) For a while, federal law mandated that the maximum highway speed would be 55 mi/h. Use the conversion factor fro...

Q: The displacement of an object moving under uniform acceleration is some function

The displacement of an object moving under uniform acceleration is some function of time and the acceleration. Suppose we write this displacement as s = kamtn, where k is a dimensionless constant. Sho...

Q: Assume it takes 7.00 minutes to fill a 30.

Assume it takes 7.00 minutes to fill a 30.0-gal gasoline tank. (a) Calculate the rate at which the tank is filled in gallons per second. (b) Calculate the rate at which the tank is filled in cubic met...

Q: One gallon of paint (volume = 3.79 x 10

One gallon of paint (volume = 3.79 x 10-3 m3) covers an area of 25.0 m2. What is the thickness of the fresh paint on the wall?

Q: A sphere of radius r has surface area A = 4πr2 and

A sphere of radius r has surface area A = 4πr2 and volume V = (4/3) πr3. If the radius of sphere 2 is double the radius of sphere 1, what is the ratio of (a) the areas, A2/A1 and (b) the volumes, V2 /...