Physics, 20.11.2020 14:00 naomicervero
1. A person weighs 155 lbs and is walking 3.1 miles per hour. How much kinetic energy does the person have? (Keep in mind, 1 kg is 2.2 lb, and 1 m/s is 2.24 mi/h.)2. What is the kinetic energy of a 5 g bullet travelling 400 m/s? 3. Is it possible to have a negative KE? Why or why not?
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The man of mass m1 and the woman of mass m2 are standing on opposite ends of the platform of mass m0 which moves with negligible friction and is initially at rest with s = 0. the man and woman begin to approach each other. derive an expression for the displacement s of the platform when the two meet in terms of the displacement x1 of the man relative to the platform.
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Answer fast! which lens can produce a virtual image and a real image? concave lens convex lens flat lens
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1. A person weighs 155 lbs and is walking 3.1 miles per hour. How much kinetic energy does the perso...
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