Physics, 28.12.2019 03:31, sweetLips230
Jennifer, who has a mass of 40.0 kg, is riding at 25.0 m/s in her red sports car when she must suddenly slam on the brakes to avoid hitting a deer crossing the road. she strikes the seat belt, that brings her body to a stop in 0.400 s. what average force does the seat belt exert on her?
Answers: 2
Physics, 21.06.2019 16:30, minnie7760
Aball bearing at 220.0 °c is dropped into a cup containing 250.0 g of water at 20.0 °c. the water and ball bearing come to a temperature of 30.0 °c. what is the heat capacity of the ball bearing in j/°c? (hint: how are the algebraic signs of q related for the ball bearing and the water? )
Answers: 1
Physics, 22.06.2019 12:00, shrinu
Selma made a diagram to compare convection and radiation. which label belongs in the area marked x? must involve temperature differences between substances or objects only occurs when molecules are in direct contact involves the movement of fluids based on density differences can occur where there is little or no matter
Answers: 1
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