Questions from College Physics

Q: An anchor, made of cast iron of bulk modulus 60.

An anchor, made of cast iron of bulk modulus 60.0 GPa and of volume 0.230 m3, is lowered over the side of the ship to the bottom of the harbor where the pressure is greater than sea level pressure by...

Q: On a warm summer day, the air temperature is 84°

On a warm summer day, the air temperature is 84°F. Express this temperature in (a) °C and (b) kelvins.

Q: 1. A transverse wave travels on a string of mass m

1. A transverse wave travels on a string of mass m, length L, and tension F. Which statement is correct? (a) The energy of the wave is proportional to the square root of the wave amplitude. (b) Every...

Q: The radius of a wheel is 0.500 m. A

The radius of a wheel is 0.500 m. A rope is wound around the outer rim of the wheel. The rope is pulled with a force of magnitude 5.00 N, unwinding the rope and making the wheel spin CCW about its cen...

Q: An ideal transformer with 1800 turns on the primary and 300 turns

An ideal transformer with 1800 turns on the primary and 300 turns on the secondary is used in an electric slot car racing set to reduce the input voltage amplitude of 170 V from the wall output. The c...

Q: A 2.0 kg block is moving to the right at

A 2.0 kg block is moving to the right at 1.0 m/s just before it strikes and sticks to a 1.0 kg block initially at rest. What is the total momentum of the two blocks after the collision?

Q: A particle is initially moving at 0.60c. If its

A particle is initially moving at 0.60c. If its momentum increases by a factor of 2.0, what is its speed?

Q: Describe the polarization of radio waves transmitted from a horizontal electric dipole

Describe the polarization of radio waves transmitted from a horizontal electric dipole antenna that travel parallel to Earth’s surface.

Q: The radio telescope at Arecibo, Puerto Rico, has a reflecting

The radio telescope at Arecibo, Puerto Rico, has a reflecting spherical bowl of 305 m (1000 ft) diameter. Radio signals can be received and emitted at various frequencies with the appropriate antennae...

Q: An electromagnetic rail gun can fire a projectile using a magnetic field

An electromagnetic rail gun can fire a projectile using a magnetic field and an electric current. Consider two horizontal conducting rails that are 0.500 m apart with a 50.0 g conducting projectile th...