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A police car parked by the side of a straight road is passed by a speeding car going at a constant speed of 30 m/s. Starting 2 seconds after the speeder passes, the police car accelerates at 6.0m/s^2 for 6 seconds, and then maintains constant speed until it catches the speeding car.
(a) How many seconds after the speeder passes does the police car catch the speeder.
(b) How far away from the police car's starting point does this happen?
Joseph is standing 0.80 meters in front of a big spherical mirror (concave mirror), and sees his image upright and magnified 3.0x bigger than he is. Find the radius of curvature of the mirror
question a student records the first 10 harmonics for a pipe. is it possible to determine whether the pipe is open or
On the salt flats of Bonnevile, Utah (latitude ?41?^o N) the British auto racer John Cobb in 1947 became the first man to travel at a speed of 400 mph on land. If he was headed due north at this speed, find the ratio of the magnitude of the Coriolis ..
a billiard ball of mass 0.649 kg and speed 0.479 ms makes a head-on elastic collision with an identical billiard ball
This is accomplished using two small rockets, each with 150-N thrust, that are mounted on the rim of the station.
You are designing a delivery ramp for crates containing exercise equipment. The crates of weight 1470N will move with speed 2.2m/s at the top of a ramp that slopes downward at an angle 25.0degrees. The ramp will exert a 621N force of kinetic friction..
A 5-kg rock is dropped off a 30-m high building. If the rock is dropped from rest, what is the average power supplied by gravity
You combine two thin lenses by placing them in contact so that their axes coincide, Find the focal length of this compound lens
Illustrate what was its angular acceleration (assumed constant) and what was its final angular speed in rpm?
A block of mass m [kg] slides from rest a distance d [m] down a frictionless incline at angle theta where it runs into a spring of spring constant k [N/m]. When the block momentarily stops, it has compressed the spring by x [cm].
q1.an automobile driver puts on brakes and decelerates from 68 mph to zero in 16 s. what distance does the car travel?a
how far will the bullet penetrate the block of wood.
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