A speeder traveling at 40 mph (about 17.9 m/s) in a 25 mph zone approaches a parked police car. The
instant the speeder passes the police car, the police begin their pursuit. If the speeder maintains a
constant velocity and the police car accelerates with a constant acceleration of 4.50 m/s2
, how long does
it take for the police car to catch the speeder?
Answers: 3
Physics, 21.06.2019 14:40
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Photoelectrons with a maximum speed of 6.50 x 107 m/s are ejected from a surface in the presence of light with a frequency of 6.75 x 1014hz. if the mass of an electron is 9.10 x 10-31 kg, calculate in joules the maximum kinetic energy of a single electron. 3.84 x 10-15 j 1.92 x 10-15 j 5.92 x 10-23 j 3.07 x 10-16 j
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Physics, 22.06.2019 20:00
Aturntable that spins at a constant 74.0 rpm takes 3.10 s to reach this angular speed after it is turned on. find its angular acceleration (in rad/s2), assuming it to be constant, and the number of degrees it turns through while speeding up.
Answers: 2
A speeder traveling at 40 mph (about 17.9 m/s) in a 25 mph zone approaches a parked police car. The...
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