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Question: A sound wave enters from a warm room at 23°C to chilly room at 2°C. If the frequency of the sound is 1500 Hz,
A. What is the difference in the wavelength of the wave between two rooms?
A cat rides a merry-go-round while turning with uniform circular motion. At time t1 = 2.00 s, What is the magnitude of the cat's centripetal acceleration
A ray of light enters an equilateral prism made of material with n=1.45 at angle of incidence theta. The internally refracted ray is parallel to the base of the prism. What is the angle of refraction for the ray leaving the prism?
An ?-particle has a charge of +2e and a mass of 6.64 ? 10-27 kg, What is the speed of the ?-particle and What is the radius of its circular path
Three identical resistors are connected in parallel. Determine resistance of the resistors
q1. air is flowing through a rocket nozzle. inside the rocket the air has a density of 5.25kgm3 and a speed of 1.2 ms.
a 28.0 mh inductor has a reactance of 2.20 k.a what is the frequency of the ac current that passes through the
A thin, circular disk of radius R = 30 cm is oriented in the yz-plane with its center as the origin. find the magnitude of the electric field due to the disk
An object glides on a horizontal tabletop with a coefficient of kinetic friction of 0.45. If its initial velocity is 5.5 m/s, how long does it take for the object to come to rest
A baseball bat is 1 meter long and is made of wood with density 525 kg/m^3. If the bat is held such that the point of rotation is 5.0 cm from the thin end, what is the rotational inertia of the bat
a 0.25kg block is placed on a light vertical spring k5 x 103nm and pushed downwards compressing the spring and
a parallel-plate capacitor having plates 5.8 apart is connected across the terminals of a 12 battery. describe the
Jack was exposed to fast neutrons; he received a radiation dose of 300rem on part of his hand, affecting 28.0grams of tissue. How much radiation did Jack receive
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