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Suppose you are driving on the interstate at 88 mph when you see a highway patrol car parked up ahead. You apply your brakes, decelerating at a constant rate of 3.9 mph/sec until you have reduced your speed to 65 mph. You then maintain a constant speed of 65 mph. You pass the patrol car 17 seconds after you initially applied the brakes and are relieved that he doesn't pull out after you. How far away was the highway patrol car when you first saw it?
A squirrel has x- and y-coordinates ( 1.4m , 3.3m ) at time t1=0 and coordinates ( 4.8m , -0.40m ) at time t2 = 2.7s, Find the magnitude of the average velocity
A star is moving away from Earth at a speed of 2.3x10^8 m/s. find the wavelength as measured by an Earth observer
A woman stands on a scale in a moving elevator. Her mass is 73.0 kg, and the combined mass of the elevator and scale is an additional 815 kg. What does the scale read during the acceleration
a spaceship enters the solar system moving toward the sun at a constant speed relative to the sun. by its own clock the
A shuffleboard disk is accelerated to the speed of 6.1 m/s and released. If the coefficient of kinetic friction between disk and the concrete court is 0.30, how far does the disk go before it comes to a stop? The courts are 14.5m long.
a tennis ball is fired from a gun that us mounted on the floor. the tennis ball has an initial speed Vo= 25.0m/s, what is the speed of the tennis ball when it reaches your racket
A small mass is placed a distance r from the center of a flat, circular disk that can rotate about its center. At what frequency of rotation will the mass start to slide off
question1a single point charge q 1.85 microc is fixed at the origin. an imaginary spherical surface of radius 3.00 m
A portable DVD player is operated by rechargeable batteries. The batteries are recharged by a unit that plugs into a wall socket. What voltage is used to drive the DVD player
q1. a 170 g block hangs from a spring with spring constant 9.0 nm. at t0 s the block is 24 cm below an equilibrium
A 49.0 g ball of copper has a net charge of 1.7 µC. What fraction of the copper's electrons have been removed
a cannonball is shot from ground level with an initial horizontal velocity of 36.0 ms and an initial vertical velocity
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