Physics, 04.02.2020 17:48 cesarcastellan9
Apitcher throws a 0.144-kg baseball toward the batter so that it crosses home plate horizontally and has a speed of 42 m/s just before it makes contact with the bat. the batter then hits the ball straight back at the pitcher with a speed of 47 m/s. assume the ball travels along the same line leaving the bat as it followed before contacting the bat. (a) what is the magnitude of the impulse delivered by the bat to the baseball? 12.816 n · s (b) if the ball is in contact with the bat for 0.0046 s, what is the magnitude of the average force exerted by the bat on the ball? kn (c) how does your answer to part (b) compare to the weight of the ball? fav mg =
Answers: 2
Physics, 21.06.2019 21:30
Aquantity of gas has a volume of 1.5 m3 and an absolute pressure of 95 kpa. when the gas is compressed to a volume of 0.5 m3, what is the new absolute pressure of the gas? (assume that there’s no change in temperature.)
Answers: 3
Physics, 22.06.2019 00:30
Imagine you work as a consultant, and your daily job involves listening to the constructive criticism of others. as part of your job, you must listen to opposing viewpoints to make important decisions. in this activity, you are a consulting dam engineer. you must make a decision about four different dams; should they be repaired, taken down, or left alone? you will listen to contrasting opinions about what should be done with the dams before you make the final decision. as the consulting dam engineer, what do you decide to do with this dam? explain your reasoning. by making your decision, did you support the opinions of the mayor and/or the dam safety official? why or why not? (site 1)
Answers: 1
Apitcher throws a 0.144-kg baseball toward the batter so that it crosses home plate horizontally and...
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