Physics, 20.03.2020 01:52 he0gaubong
1. A toy car with mass m1 travels to the right on a frictionless track with a speed of 3 m/s. A second toy car with mass m2 travels with a speed of 6 m/s to the left on the same track. The two cars collide and stick together. What are the cars’ speeds after the collision?
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Which explanation describes the forces involved for a person to walk down the sidewalk? a. the person's feet push backward on the sidewalk; the sidewalk pushes backward on the person. b. the person's feet push forward on the sidewalk; the sidewalk does not push on the person. c. the person's feet push backward on the sidewalk; the sidewalk pushes forward on the person. d. the person's feet push forward on the sidewalk; the sidewalk pushes forward on the person.
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Frequency of electromagnetic waves that a radio station is assigned is called
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1. A toy car with mass m1 travels to the right on a frictionless track with a speed of 3 m/s. A seco...
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