Questions from College Physics

Q: An RLC series circuit has L = 0.300 H and

An RLC series circuit has L = 0.300 H and C = 6.00 µF. The source has a peak voltage of 440 V. (a) What is the angular resonant frequency? (b) When the source is set at the resonant frequency, the pe...

Q: Six sound waves have pressure amplitudes p0 and frequencies f as given

Six sound waves have pressure amplitudes p0 and frequencies f as given. Rank them in order of the displacement amplitude, largest to smallest. (a) p0 = 0.05 Pa, f = 400 Hz (b) p0 = 0.01 Pa, f = 400 Hz...

Q: Anne's retina is 1.8 cm from the lens. The

Anne's retina is 1.8 cm from the lens. The nearest object she can see clearly without corrective lenses is 2.0 m away. (a) Sketch a ray diagram to show (qualitatively) what happens when she tries to...

Q: (a) If Harry has a near point of 1.

(a) If Harry has a near point of 1.5 m, what focal length contact lenses does he require? (b) What is the refractive power of these lenses?

Q: A guitar string has a fundamental frequency f. The tension in

A guitar string has a fundamental frequency f. The tension in the string is increased by 1.0%. Ignoring the very small stretch of the string, how does the fundamental frequency change?

Q: A penny is at the bottom of a bowl brim full of

A penny is at the bottom of a bowl brim full of water. When you look at the water surface from the side, with your eyes at the water level, the penny appears to be just barely under the surface and a...

Q: A nearsighted man cannot clearly see objects more than 2.0

A nearsighted man cannot clearly see objects more than 2.0 m away. The distance from the lens to the retina is 2.0 cm, and the eye's power of accommodation is 4.0 D (in other words, the refractive pow...

Q: Suppose the distance from the lens to the retina is 18 mm

Suppose the distance from the lens to the retina is 18 mm. (a) What must the refractive power of the lens be when looking at distant objects? (b) What must the refractive power of the lens be when l...

Q: In the ac generator of Fig. 20.6, the

In the ac generator of Fig. 20.6, the emf produced is ℰ(t) = ωBA sin ωt. If the generator is connected to a load of resistance R, then the current that flows is...

Q: The positions of three objects, written as (x, y

The positions of three objects, written as (x, y) coordinates, are: (1.0 m, 1.0 m), (2.0 m, 3.0 m), and (3.0 m, 1.0 m). The objects have equal masses. If one of the objects is moved 12 cm in the posit...