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A speeding car traveling at 120km/hr passes a cop that is traveling at the same speed in the opposite direction. Upoon seeing the cop,the car begins to accelerate. The cop immediately begins to pursue the car by reversing his direction and accelerating at 3 km/s^2 greater than the car. The cop notices that it takes him .1 km to completely reverse his direction before he can begin chasing the car. How far down the road from the initial point that they passed each other will the cop catch the car?
when a 50 mf capacitor is attached to an ac source its capacitive reactance is 40 ohms. if instead a 100 mf capacitor
A solid sphere with a radius of 0.70 m can be rotated about an axis through its center by a torque of 10.5 N *m which accelerates it uniformly from rest through a total of 180 revolutions in 15.0 s
A 128 carton is pulled up a frictionless baggage ramp inclined at 30.0 above the horizontal by a rope exerting a 72.60 pull parallel to the ramp's surface. If the carton travels 5.20 along the surface of the ramp, compute the work done on it by the r..
A 1.5kg- block of ice is initially at a temperature of -7.0C a)If 2.6×10^5J of heat are added to the ice, what is the final temperature of the system? b)Find the amount of ice, if any, that remains.
question a 120-kg mail bag hangs by a vertical rope 3.5 m long. a postal worker then displaces the bag to a position
A 67.0 kg diver is 2.30 m above the water, falling at speed of 6.70 m/s. Calculate her kinetic energy as she hits the water
A silicon solar cell looks like a battery with a 0.33Vterminal voltage. What is the solar cell's efficiency-that is, what percentage of the energy incident on the cell is converted to electric energy
The figure shows three blocks attached by cords that loop over frictionless pulleys. Block B lies on a frictionless table; what is the tension in the cord at the right
An interferometer can be used to measure very small distances, much like a caliper but with a far greater precision. How far did the movable arm of the interferometer travel
Consider the following pipe assembly containing a permeable filter of length L=20cm, area A=20cm^2, and permeability of 4 millidarcys. what is the velocity of the flow through the filter section
The merry-go-round is moving at a speed of 0.3 rev/sec when it shuts down. find the initial angular velocity of the merry-go-round
Two very large charged parallel metal plates are 10.0cm apart, How much work has the electric field done on this proton by the time it reaches the positive plate
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