Ronnie wants to investigate the effect of height on the number of times a ball bounces back. He drops the ball from three different heights (1 m, 1.5 m, and 2 m). If the ball bounces back 12 times from the 1.5 m height, which of the following is a possibility for how many times the ball bounces from a 1 m height?
8 times because the ball will have more mechanical energy
15 times because the ball will have less mechanical energy
8 times because the ball will have less mechanical energy
15 times because the ball will have more mechanical energy
Answers: 2
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What determines the average kinetic energy of the particles in a gas? a. the number of collisions b. the number of particles c. the size of the particles d. the temperature
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Adepositional also feature that forms where a stream enters a lake or an ocean is a
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Consider the reduction reactions and their equilibrium constants. cu+(aq)+eββ½βββcu(s)pb2+(aq)+2eββ½βββpb(s)fe3+(aq)+3eββ½βββfe(=6.2Γ108=4.0Γ10β5=9.3Γ10β3 cu + ( aq ) + e β β½ β β β cu ( s ) k =6.2Γ 10 8 pb 2 + ( aq ) +2 e β β½ β β β pb ( s ) k =4.0Γ 10 β 5 fe 3 + ( aq ) +3 e β β½ β β β fe ( s ) k =9.3Γ 10 β 3 arrange these ions from strongest to weakest oxidizing agent.
Answers: 3
Ronnie wants to investigate the effect of height on the number of times a ball bounces back. He drop...
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