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A car is traveling at 45m/s passes a tropper hidden behind a billboard. Two seconds after the speeding car passes the billboard the tropper set out from the billboard to catch it. If the trooper accelerates as a constant rate of 3 m/s2
1) How long does it take the tropper to catch the car?
2) What is the speed of the trooper when he catches the car?
a solid uniform disk of radius 0.250 m and mass 60.5 kg rolls down a ramp of length 5.20 m that makes an angle of
A car weighing 8800 Newton moves along a level highway with a speed of 100 km/h. The power of the engine at this speed is 78 kilowatt. compute the new speed of the car on the hill
Two particles are fixed to an x axis: particle 1 of charge-8.00 10-7 C at x = 6.00 cm and particle 2 of charge +8.00 10-7 C at x = 33.0 cm. Midway among the particles, what is their net electric field?
two violinists are playing two different tones. the first violinist plays a tone that has a frequency of 100 hz. you
A particular cylindrical bucket has a height of 36.0 cm, and the radius of its circular cross-section is 15 cm. The bucket is empty, aside from containing air. what is the height of the cylinder of air in the bucket
A bird is flying directly toward a stationary bird-watcher and emits a frequency of 1230 Hz. The bird-watcher, however, hears a frequency of 1260 Hz. What is the speed of the bird, expressed as a percentage of the speed of sound?
A 4.00-kg block rests between the floor and a 3.00-kg block as shown in the figure. the 3.00-kg block is tied to a wall by a horizontal rope. how many forces would we draw acting on the block
What is the electric potential at C
two stationary positive point charges charge 1 of magnitude 3.00 and charge 2 of magnitude 2.00 are separated by a
after boarding an airpalne you carry your 14.0 kg suitcase down the aisle to your seat a distance of 24.0 m
The dipole moment of the water molecule is 6.1 * 10^-30 C * m. In an electric field, a molecule with a dipole moment will tend to settle into an equilibrium orientation such that the dipole moment is parallel to the electric field
A man sits on the south bank of a 100m wide river that flows due east at 2m/s. The man can swim 3m/s, How long will it take him to cross
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