Questions from College Physics

Q: Show that the charge of the neutron and the charge of the

Show that the charge of the neutron and the charge of the proton are consistent with their constituent quark content.

Q: Sketch a graph of ax(t) for the car in

Sketch a graph of ax(t) for the car in Problem 43.

Q: Christy has a grandfather clock with a pendulum that is 1.

Christy has a grandfather clock with a pendulum that is 1.000 m long. (a) If the pendulum is modeled as a simple pendulum, what would be the period? (b) Christy observes the actual period of the clo...

Q: A dinoflagellate takes 5.0 s to travel 1.0

A dinoflagellate takes 5.0 s to travel 1.0 mm. Approximate a dinoflagellate as a sphere of radius 35.0 μm (ignoring the flagellum). (a) What is the drag force on the dinoflagellate in seawater of visc...

Q: A pendulum of length 120 cm swings with an amplitude of 2

A pendulum of length 120 cm swings with an amplitude of 2.0 cm. Its mechanical energy is 5.0 mJ. What is the mechanical energy of the same pendulum when it swings with an amplitude of 3.0 cm?

Q: In a playground, two slides have different angles of incline θ1

In a playground, two slides have different angles of incline θ1 and θ2 (θ2 > θ1) A child slides down the first at constant speed; on the second, his acceleration down the slide is a. Assume the coeffi...

Q: The potential energy associated with surface tension is much like the elastic

The potential energy associated with surface tension is much like the elastic potential energy of a stretched spring or a balloon. Suppose we do work on a puddle of liquid, spreading it out through a...

Q: (a) What is the energy of a pendulum (L

(a) What is the energy of a pendulum (L = 1.0 m, m = 0.50 kg) oscillating with an amplitude of 5.0 cm? (b) The pendulum’s energy loss (due to damping) is replaced in a clock by allowing a 2.0 kg mass...

Q: A cube that is 4.00 cm on a side and

A cube that is 4.00 cm on a side and of density 8.00 × 102 kg/m3 is attached to one end of a spring. The other end of the spring is attached to the base of a beaker. When the beaker is filled with wat...

Q: A piano tuner sounds two strings simultaneously. One has been previously

A piano tuner sounds two strings simultaneously. One has been previously tuned to vibrate at 293.0 Hz. The tuner hears 3.0 beats per second. The tuner increases the tension on the as-yet untuned strin...