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A simple pendulum is swinging back and forth through a small angle, its motion repeating every 1.13 s. How much longer should the pendulum be made in order to increase its period by 0.34 s?
In the Michelson-Morley experiment, a null result, or a net fringe shift of ΔN = 0 was obtained when the Michelson interfero meter was rotated by 90°.
Find the average horizontal force exerted by the ground on the feet of a sprinter of mass 44.1 kg who accelerates from rest to a speed of 12.4 m/s in a time interval of 1.00 s
A fruit fly 2.16 mm long is examined with a simple magnifier. What is the focal length of the magnifier
Consider an open tube of length L = 17 cm. What are the wavelength and frequency for the rst mode
A certain freely falling object requires 1.85s to travel the last 31m before it hits the ground. From what height above the ground did it fall.
If the coils of a heater have a resistance of 6 Omgea when hot, what current does the heater require
An electron moving parallel to the x axis has an initial speed of 3.70x10^6 m/s at the origin. Calculate the potential difference between the origin and that point.
A copper-constantan thermocouple generates a voltage of 4.55 10-3 volts when the temperature of the hot junction is 103.4° C, what is the temperature of the hot junction when the voltage is 1.94 10-3 volts
Two tugboats pull a disabled supertanker. Each tug exerts a constant forace of 1.55*10^6n, What is the toal work they do on the supertanker
A 2.40 MHz sound wave travels through a pregnant woman's abdomen and is reflected from the fetal heart wall of her unborn baby. The heart wall is moving toward the sound receiver as the heart beats.
In exercising, a weight lifter loses 0.152 kg of water through evaporation, the heat required to evaporate the water coming from the weight lifter's body. find the change in the internal energy of the weight lifter
Calculate the rest energy of an electron in joules and Calculate the rest energy of an electron in MeV (1MeV=1.60×10?13J)
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