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UCBXPhys1Exam2.tst
question suppose you carry a bag of groceries weighing 151 n from your car to your kitchen a distance of 38 m without
A student sits on a freely rotating stool holding two weights, each of mass 3.10 kilograms. Determine the new angular speed of the student
Discuss the cause and different mechanisms available. Recognize and discuss the flow control techniques on which they are based? Determine the pros and cons of each?
Certain neutron stars (extremely dense stars) are believed to be rotating at about 1.2 rev/s. If such a star has a radius of 21 km, what should be its minimum mass so that material on its surface remains in place through the rapid rotation?
Determine the velocity of a beam of electrons that goes undeflected when moving perpendicular to an electric and magnetic fields. Find the radius of the electron orbit if the electric field is turned off
Coin is placed 14.0 from the axis of the rotating turntable of variable speed. When the speed of the turntable is slowly increased, the coin remains fixed on turntable until a rate of 40.0 (revolutions per minute) is reached, at that point the coin s..
A 3.0 m long rigid beam with a mass of 125 kg is supported at each end. An 65 kg student stands 2.0 m from support 1. How much upward force does each support exert on the beam
A second skater initially at rest with a mass of 58.4 kg catches the snowball. What is the velocity of the second skater after catching the snowball in a perfectly inelastic collision
A parallel plate capacitor has plates of area A and seperation of d and is charged to a potential difference of V.Derive expressions for the new potential difference
An old 9.0-V battery produces a potential dissimilarity of 9.0 V when checked with a voltmeter. If the internal resistance is 14.3 and a 100 resistor is connected across the battery leads, what is the voltage across the battery's leads?
The tires of a car make 86 revolutions as the car reduces its speed uniformly from 88.0 km/h to 60.0 km/h. How far does the car go? Find the total distance
An electron ( mass = 9.11×10?31 ) leaves one end of a TV picture tube with zero initial speed and travels in a straight line to the accelerating grid, which is 1.79 away. It reaches the grid with a speed of 2.96×106 . (You can ignore the gravitati..
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