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A car (mass = 1170 kg) is traveling at 42 m/s when it collides head-on with a sport utility vehicle (mass = 2330 kg) traveling in the opposite direction. In the collision, the two vehicles come to a halt. At what speed was the sport utility vehicle traveling?
A rocket, initially at rest on the ground, accelerates straight upward from rest with constant acceleration 49.0m/s2, Find the maximum height ymax reached by the rocket
Mike pulls a sled across level snow with force of 235 N along a rope that is 35.5° above the horizontal. If the sled moved the distance of 75.0 m, how much work did Mike do.
Like all stars, our sun converts mass into energy which radiates (spherically) in all directions. Calculate the rate at which the sun is losing mass
A long straight wire carries a current of 6.2 A. The wire is horizontal in the plane of the page (screen) and the current is traveling to the left. Calculate the force that acts on the electron
A loudspeaker is placed between two observers who are 120 m apart, along line connecting them. If one observer records a sound level of 52.8 dB and the other records a sound level of 83.5 dB, how far is the speaker from each observer? Enter the longe..
How various g's of acceleration does the astronaut experience when the device is rotating at top speed? Each 9.80 m/s^2 of acceleration is 1 g.
An alpha particle (the nucleus of a helium atom, with charge +2e and a mass four times that of a proton), What is the speed of the antiproton when the particles are 1.1nm apart
A toaster draws a current os 5 amps when it is connected to a 110 volt ac line. what is the power consumption of the toaster
if the boy is traveling at 1m/s relative to the ground, explain how fast does the boy appear to be moving relative to the woman?
A small camera has a lens with focal length f=15 mm has a movable lens that can be focused on objects as close as 20 cm or as far away as infinity (relative to f). What is the optimum lens-film distance
The positions of three particles, written as (x, y coordinates, are: particle 1 (mass 3.7 kg) at (4 m, 0 m); What is the location of the center of mass
A motorcycle, which has an initial linear speed of 8.1 m/s, decelerates to a speed of 1.9 m/s in 6.7 s. find the angular displacement (in rad) of each wheel
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