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Q1. A 35.0-g bullet moving at 475 m/s strikes a 3.2-kg bag of flour that is on ice, at rest. The bullet passes through the bag, leaving at 225 m/s. How fast is the bag moving while the bullet exits?
Q2. Two point charges are placed on the x axis. The first charge, = 8.00, is placed a distance 16.0 from the origin along positive x axis; the second charge, = 6.00, is placed a distance 9.00 from the origin along negative x axis. Compute the electric field at point A, located at coordinates (0m, 12m).
A 2.1-kg block is released from rest and allowed to slide down a frictionless surface and into a spring. The far end of the spring is attached to a wall, as shown. The initial height of the block is 0.36 m above the lowest part of the slide and the s..
Two identical aluminium objects are insulated from their surroundings. Object A has a net charge of excess electrons. Object B is grounded. Which object is at the higher potential.
Evaluate maximum altitude?
If the contact time with the sidewalk is 1800s, what is the magnitude of an average force exerted on the superball by the sidewalk.
What is the length of the greatest and thinnest string that can be located under a tension of 860 without breaking .
The coefficient of kinetic friction for wood sliding on wood is 0.20. What is the final speed of the bullet
Horse races once around a circular track in a time of 176 s, with a speed of 26 m/s. What is the radius of the track.
What is swimmer velocity relative to the bank
A ball of mass 1.024 g and positive charge q =40.3microC is suspended on a string of negligible mass in a uniform electric field. We observe that the ball hangs at an angle of theta=15.0o from the vertical. What is the magnitude of the electric field..
The coefficients of friction for plastic on wood are μs = 0.50 and μk = 0.40. How much horizontal force would you want to apply to a 4.0-lb plastic calculator to start it moving from rest.
If the 2 kg mass slides on a horizontal frictionless surface, what is the speed of the mass 4 kg while it has fallen a distance 0.4 m downward from its rest position.
Uniform rate of acceleration
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