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a car passes a stationary cop at 35 m/s. at that instant, he presses his brakes, slowing at a rate of 1.5 m/s2. The cop takes 2 sec. to put down his gear to pursue, accelerating at 3.5 m/s2.
1. How far did the cop travel to catch up?
2. how long was the pursuit?
Torque can be calculated by multiplying the force (N) applied at 90 degrees to the lever arm at a distance (m) from the pivot point (point of rotation), what is the torque on the lever
Explain why? Because when you go to the grocery store they do not take any recognition as a form of payment!" do you agree or disagree? Examine.
A 3.00 kg mass resting on a level table top is pulled along by a horizontal force of 16 N and accelerates at 4.00 meters per second per second. What is the force of friction between block and table.
charge q1=1 ?C is located at the position (x,y,)=(5 cm, 7 cm). A second charge, q2=2 ?C is located at the position (x,y,)=(5 cm, 0 cm). Calculate the work required to move a third charge
Suppose a formula for gain in heat energy of an object is H = m(A - B), where m = mass and (A - B) is its rise in temperature between A degrees and B degrees (as in #4). Write an expression for the absolute uncertainty, delta-H, in terms of m, del..
question1the pulley of an ideal atwoods machine is given an upward acceleration a. find out an acceleration of each
A placekicker must kick a football from a point 36.0 m (about 40 yards) from the goal. By how much does the ball clear or fall short of clearing the crossbar
During exercise, a person may give off 145kcal of heat in 20min by evaporation of water (at 20?C)from the skin. How much water has been lost
Consider a series RLC circuit with R = 15 , L = 196 mH, C = 75 µF, and a maximum voltage of 148 V. What is the impedance of the circuit at resonance
at the surface of the earth what is the force on the rocket due to gravity when the rocket has reached an altitude of 1.2 x 104 km
The following charges are located inside a submarine: 6.20 µC, ?9.00 µC, 27.0 µC, and ?59 µC. find the net electric flux through the hull of the submarine
By holding a magnifying glass 35cm from your desk lamp, you can focus an image of the lamp's bulb on a wall 1.8m from the lamp
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