When two objects collide and stick together, what will happen to their speed, assuming momentum is conserved?
They will move at the same velocity as whichever object was fastest initially.
They will move at the same velocity of whichever object was slowest initially.
They will move more quickly.
They will move more slowly.
Answers: 3
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Abird flies directly overhead from where you stand at an altitude of 300.0 m and at a speed horizontal to the ground of 20.0 m/s. the bird has a mass of 2.0 kg. the radius vector to the bird makes an angle \thetaθ with respect to the ground. the radius vector to the bird and its momentum vector lie in the xyxy-plane. what is the bird’s angular momentum about the point where you are standing?
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The illuminance of a surface varies inversely with the square of its distance from the light source. if the illuminance of a surface is 120 lumens per square meter when its distance from a certain light source is 6 meters, by how many meters should the distance of the surface from the source be increased to reduce its illuminance to 30 lumens per square meter?
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When two objects collide and stick together, what will happen to their speed, assuming momentum is c...
Mathematics, 10.10.2019 01:30
Mathematics, 10.10.2019 01:30