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Q. When two point charges are a distance apart, their potential energy is -4.00 .How far (in terms of ) should they be from each other so that their potential energy is -8.00 ?
Q. A wheel 65.0 cm in diameter accelerates uniformly from 230 rpm to 355 rpm in 7.0 s. How far will a point on the edge of the wheel have traveled in this time?
Estimate the ball's rise in temperature.
State your answer in terms of and Use three significant figures in the numerical coefficient.
A bumper car with mass m1 = 116 kg is moving to the right with a velocity of v1 = 5 m/s. A second bumper car with mass m2 = 96 kg is moving to the left with a velocity of v2 = -3.8 m/s. The two cars have an elastic collision. Suppose the surface is f..
What is the ratio of the amplitude of the damped oscillation
Compute magnitude and direction of magnetic field produced by the moving belt at a point just above its surface .
A 25 g of copper pellets are removed from a 300 C oven and immediately dropped into 120 mL of water at 18 C in an insulated cup. What will the new water temperature be.
A cricket ball is bowled at a speed of 144 km/hr. suppose the ball diameter is 70 mm and a drag coefficient 0.45, estimate the drag force in newtons which would be acting on the ball.
The objects are then released from rest. Assuming that the particles never reach the pulley, and also that the particles do not rebound when they strike the ground.
Find the mass flow rate in through the vent in question #1 using the following well-known relationship for the mass flow into an opening:
A daredevil is shot out of a cannon at 43 degrees to the horizontal with an initial seed of 25m/s. A net is positioned at a horizontal distance of of 50m from the cannon from which it is shot. At what height above cannon should the net be placed i..
A sled weighing 189N rests on a 15° incline, held in place by static friction. The coefficient of static friction is 0.50.
At an outdoor market, a bunch of bananas attached to the bottom of a vertical spring of force constant 16.0 N/m is set into oscillatory motion with amplitude of 20.0 cm.
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