Questions from College Physics

Q: A soccer ball of diameter 31 cm rolls without slipping at a

A soccer ball of diameter 31 cm rolls without slipping at a linear speed of 2.8 m/s. (a) Through how many revolutions has the soccer ball turned as it moves a linear distance of 18 m? (b) What is th...

Q: In the crossover network of the figure, the crossover frequency is

In the crossover network of the figure, the crossover frequency is found to be 252 Hz. The capacitance is C = 560 µF. Assume the inductor to be ideal. (a) What is the impedance of the tw...

Q: The force that must be exerted to drive a nail into a

The force that must be exerted to drive a nail into a wall is roughly as shown in the graph. The first 1.2 cm are through soft drywall; then the nail enters the solid wooden stud. How much work must b...

Q: Three point charges are placed at the corners of an equilateral triangle

Three point charges are placed at the corners of an equilateral triangle having sides of 0.150 m. (a) What is the total electric force on the 2.50 µC charge? (b) What is the electric pot...

Q: A common flashlight bulb is rated at 0.300 A and

A common flashlight bulb is rated at 0.300 A and 2.90 V (the values of current and voltage under operating conditions). If the resistance of the bulb's tungsten filament at room temperature (20.0°C) i...

Q: The weight of a boat is listed on specification sheets as its

The weight of a boat is listed on specification sheets as its “displacement.” Explain.

Q: Near a large lake, in what direction does a breeze passing

Near a large lake, in what direction does a breeze passing over the land tend to blow at night?

Q: Diana is standing on a raft of mass 100.0 kg

Diana is standing on a raft of mass 100.0 kg that is floating on a still lake. She decides to walk the length of the raft. If Diana's mass is 55 kg and she walks with a velocity of 0.91 m/s with respe...

Q: Three equal charges are placed on three corners of a square.

Three equal charges are placed on three corners of a square. If the force that Qa exerts on Qb has magnitude Fba and the force that Qa exerts on Qc has magnitude Fca, what is the ratio of Fca to Fba?...

Q: A highway is made of concrete slabs that are 15 m long

A highway is made of concrete slabs that are 15 m long at 20.0°C. (a) If the temperature range at the location of the highway is from−20.0°C to +40.0°C, what size expansion gap should be left (at 20....