A 0.75 kg toy car moving with a speed of 3 m/s to the right collides with a 0.25 kg toy car moving with a speed of 3 m/s to the left. The two collide and the 0.25 kg toy car ends with a speed of 5 m/s to the right. What is the final speed of the 0.75 kg car? Is this collision elastic? Explain.
Answers: 3
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What is the freezing point of radiator fluid that is 50% antifreeze by mass? kf for water is 1.86 ∘c/m.
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Which best describes the first law of thermodynamics as compared to the second law of thermodynamics? a. the first law describes how thermal energy is conserved but not the direction it moves. b. the first law describes the direction thermal energy moves but not how it is conserved. c. the first law describes how thermal energy can be created but not how it can be destroyed. d. the first law describes how thermal energy can be destroyed but not how it can be created.
Answers: 1
A 0.75 kg toy car moving with a speed of 3 m/s to the right collides with a 0.25 kg toy car moving w...
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