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1. The amplitude of an exponential waveform is 12 V at t = 0 and 7 V at t = 3 ms. What is its time constant?
2. Construct an exponential waveform that fits entirely within the nonshaded region in given Figure.
An automobile engine slows down from 4500 rpm to 1200 rpm in 2.5 s. Calculate: Its angular acceleration, assume. the total number of revolutions the engine makes in this time
A plane flies at a speed of 100m/s relative to still air. There is a wind blowing at 40m/s, 55 degrees to the east of north. What is the speed of the plane relative to the ground?
A radioactive sample has a half-life of 2.5 minute. Determine what fraction of the sample is left after 40 minute
Two stars with equal areas and emissivities have surface temperatures of 4,061 K and 6,078 K respectively
A person on a trampoline bounces straight upward with aninitial speed of 4.5 m/s. What is the persons speed when she returnsto her initial height
A 0.22-kg stone is held 1.2 m above the top edge of a water well and then dropped into it. The well has a depth of 5.1 m. (a) Relative to the configuration with the stone at the top edge of the well, what is the gravitational potential energy of th..
a soccer player kicks the ball toward a goal that is 13.0 m in front of him. the ball leaves his foot at a speed of
An emf is induced in a conducting loop of wire 1.16 m long as its shape is changed from square to circular.
The track lies in a vertical uniform magnetic field vector B. Generator G produces a constant current i in the wire and the rails (even as the wire moves). Find the velocity of the wire's motion as a function of time, assuming it to be stationary..
These droplets are then repelled by the paint sprayer toward the object to be painted. This object is grounded and therefore the electric potential is taken to be zero everywhere on the object. What charge must a 0.700 mg drop of paint have to ar..
A small rope has a linear mass density of 8.00 g/m and is tied to two vertical walls that are separated by three fourths the length of the rope, Find an expression for the speed of a wave on the rope as a function of m
Through a time interval of exactly one period of vibration of a tuning fork, the emitted sound travels a distance: Equal to the length of the tuning fork, Equal to twice the length of the tuning fork
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