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(a) Calculate the inductance of a solenoid containing 300 turns if the length of the solenoid is 25.0 cm and its cross sectional area is 4.00×10-4 m2. (b) Calculate the self- induced emf in the solenoid described in part (a) if the current in the solenoid decreases at the rate of 50.0 A/s. detailed answer
A sinusoidal wave travels along a stretched string. A particle on the string has a maximum velocity of 0.900m/s, What is the frequency and amplitude of the wave
A box rests on a frozen pond, which serves as a frictionless horizontal surface. what is the mass of the box
a target shooting game wooden blocks are thrown into the air and shot in flight. a block of 0.8kg has a speed of 10 ms
A particle lives for a short time before breaking apart into other particles. According to this hypothetical person, how far does the laboratory move before the particle breaks apart
q1. an important news announcement is trans- mitted by radio waves to people who are 122 km away sitting next to their
A 94.00 water skier floating in a lake is pulled from rest to a speed of 10 in a distance of 24. What is the net force exerted on the skier, assuming his acceleration is constant.
explain what was surprising about the observations and important conslusions derived from blackbody radiation the
Calculate the pressure of the blood in the brain and in the feet of a pearson when standing. The average pressure of the blood in the heart is 1.3×104N/m2 above atmospheric pressure
q1. a propeller spins at 1890 revmin.a what is its angular velocity in rads?b what is the angular displacement of
When a 58-g tennis ball is served, it accelerates from rest to aspeed of 44 m/s. The impact with theracket gives the ball a constant acceleration over a distance of42 cm. What is the magnitude of the netforce acting on the ball?
While running, a person dissipates about 0.60 J of mechanicalenergy per step per kilogram of body mass. how fast is the person running
A simple pendulum uses a steel wire as the "string." The length of this wire is 1.5 m at room temperature. What is the change in the period of the pendulum
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