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A sinusoidal wave traveling on a string is moving in the positive x-direction. The wave has a wavelength of 3 m, a frequency of 70 Hz, and an amplitude of 6 cm. What is the wave function for this wave? (Use any variable or symbol stated above as necessary.)
A 58 kW radio station broadcasts its signal uniformly in all directions. What is the average intensity of its signal at a distance of 290 m from the antenna
Suppose that a police car on the highway is moving to the right at 29 m/s, while a speeder is coming up from almost directly behind at a speed of 31 m/s, which wave has the greater frequency
A small device based on the confinement of a proton in a 1 dimensional box is found to have a ground (i.e. n = 1) level energy of 16.9 keV. Determine the width of the box
A 5kg block initially at rest is pulled to the ight along a horizontal surface by a constant, force of 30N acting at 53 degrees above the horizontal. Find the net work done on the block
A step-up transformer is connected to a generator that is delivering 139 V and 110 A. what voltage is across the secondary
A glass lens has a scratch-resistant plastic coating on it. The speed of light in the glass is 0.659c, At what angle with respect to the normal is the ray transmitted
A research group plans to construct an engine that extracts energy from the ocean, using the fact that the water temperature near the surface is greater than the temperature in deep water. what is the maximum efficiency such an engine could have
A light ray is directed at the inside of a highly polished silver hemispherical bowl and is incident parallel to the symmetry axis of the bowl. in what direction will it emerge from the bowl
At one instant a bicyclist is 53m due east of a park's flagpole, going due south with a speed of 12m/s. Then 37s later, the cyclist is 53m due north of the flagpole, going due east with a speed of 12m/s. For the cyclist in this 37s interval.
question1with ones eye at a height of 1 m above water level on a lake one can just see over the horizon a point on the
drop a rock into a well. You hear the splash 2.40 s after you release the rock from rest. How far below the top of the well is the surface of the water
What is the speed of light in crown glass (n = 1.52) and What is the speed of light in ethyl alcohol (n = 1.36)
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