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A seed is 15 mm in front of a converging lens, and the image of the seed is 4.0 mm behind the lens. What is the focal length of the lens?
What is the angle of incidence that will result in maximum polarization for light reflected from the surface of liquid of index of refraction nliquid = 1.24? Express your answer in degrees and assume that the other medium is air.
What value does this give for the speed of sound in air. What is the speed of the ball at that point.
On a horizontal axis attached a flywheel and lightweight pulley with radius of 5 cm. On the pulleh is reeled with a cord, to which is hanged a weight with mass of 0.4 kg.
A capacitor of capacitance C = 4.5 µF is initially uncharged. Immediately after the switch is closed, find what is the voltage drop VC across the capacitor
Many people mistakenly believe that the astronauts orbiting the earth are "above gravity." Compute the acceleration because of gravity, g, for space shuttle territory, 245 kilometres above the earth's surface (dashed line in sketch). Earth's mass ..
A Yo-yo has a rotational inertia of 952 g·cm2 and a mass of 107 g. Its axle radius is 2.27 mm, and its string is 117 cm long. What is the magnitude of its linear acceleration
A 6.0-kg money swings from one branch to another 1.3m higher. what is the change in gravitational potential energy
a pickup truck has a width of 78.6 in. if it is traveling north at 34 ms through a magnetic field with vertical
a passenger walks from one side of a ferry to the other as it approaches a dock. if the passengers velocity is 2.00 ms
A particular satellite was placed in a circular orbit about146 mi above the Earth. Determine the time required for one complete revolution
Animals in cold climates often depend on two layers of insulation: a layer of body fat [of thermal conductivity 0.200 W/(m*K)], How thick should the air layer (contained within the fur) be so that the bear loses heat at a rate of 51.1 W
Consider the following fission reaction (1n)+235U --> 90Kr + 142Ba +4(1n) +6 \(\gamma\) where 90Kr and 142Ba are the initial fission fragments. What is the total energy eventually emitted
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