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Three sinusoidal waves of the same frequency travel along a string in the positive direction of an x axis. Their amplitudes are y1, y1/3.0, and y1/4.0, and their phase constants are 0, /5.0, and , respectively. What are
(a) the ratio of the amplitude to y1 and
(b) the phase constant of the resultant wave?
Two red blood cells each have a mass of 9.05 × 10-14 kg and carry a negative charge spread uniformly over their surfaces. What is the maximum accleration of the cells as they move toward each other and just touch
What is the average kinetic energy of helium atoms in a region of the solar corona where the temperature is 5.10 ? 105 K
A 130 block on a frictionless table is firmly attached to one end of a spring with = 40. The other end of the spring is anchored to the wall. A 21 ball is thrown horizontally toward the block with a speed of 6.6.
A converging lens is placed 20.0 cm to the right of a diverging lens of focal length 5.0 cm. Calculate the focal length of the converging lens
At our distance from the Sun, the intensity of solar radiation is 1370 W/m2. The temperature of the Earth is affected by the greenhouse effect of the atmosphere.
The wavelength of visible light ranges from 400 {\rm nm} to 700 {\rm nm}. Find the ranges of this light's angular frequency
q1. an object hangs from a spring balance. the balance indicates 40 n in air and 30 n when the object is submerged in
A 0.750 kg ball falls directly down onto concrete, hitting it with a speed of 12.0 m/s and rebounding directly upward with a speed of 3.00 m/s. What is the impulse on the concrete
how high does it rise above the point of free.
question1jims dog sparky runs 45.0 northeast to a tree then 70.0 west to a second tree and finally 25.0 south to a
Suppose that the spring is ideal and that the distance by which the spring is compressed is negligible compared to H.
What is the effective spring constant (that is, the ratio of force to change in length) of a copper cable that is 7.0 in diameter and 13 long?
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