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A pendulum clock has an aluminum pendulum exactly 1.0m long when the clock is calibrated perfectly. The temperature increases by 9?C.
By how much is it off at the end of one day? Assume a simple pendulum in which the aluminum rod's mass is negligible compared to the pendulum bob.
This bat hears its own sound plus the sound reflected by the wall. Explain how fast should the bat fly in order to hear a beat frequency of 10.0Hz?
How far should you place the lens from the slide. Express the direction as an angle with respect to the +x axis.
As a soap bubble (n = 1.33) evaporates and thins, thereflected colors gradually disappear. What is the last color seen
Jack and Jill exercise in a 25.0-m-long swimming pool. Jack swims nine lengths of the pool in 159.5 seconds, while Jill, the faster swimmer, covers ten lengths in the same time interval. Find the average velocity and average speed of each swimmer.
Two circular coils of current-carrying wire have the same magnetic moment. The first coil has a radius of 0.094 m, has 134 turns, and carries a current of 3.8 A
A grating has 776 lines per centimeter. Find out the angles of the first three principal maxima above the central fringe when this grating is illuminated with 603 nm light.
Mike pulls a sled across level snow with force of 235 N along a rope that is 35.5° above the horizontal. If the sled moved the distance of 75.0 m, how much work did Mike do.
Suppose you want to connect your stereo to remote speakers; it requires 20 m length of wire per speaker, how does the resistance changes
Three equal positive point charges of magnitude Q = 6.00? C are located at three corners of a square of edge length d = 2.6 cm. A negative charge -18.00? C is placed on the fourth corner.
A thin film of glass (n = 1.48) floats on a liquid of n = 1.35 and is illuminated by light of ? = 600 nm incident from air above it. Find the minimum thickness of the glass
A capacitor has parallel plates of area 12 cm2 separated by 4.5mm . The space between the plates is filled with polystyrene, Find the induced surface-charge density on the surface of the dielectric
The two forces in each pair could have different physical origins (for instance, one of the forces could be due to gravity, and its pair force might be due to friction or electric charge).
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