Physics, 09.01.2021 17:20 zafarm2oxgpmx
1. Adam grabs Sarah by the hand and tries to pull her. She tries to remain standing without moving. A student analyzes the situation as follows. "If Adam's force on Sarah is greater than her force on him, he can get her to move. Otherwise, she'll be able to stay where she is. "What's wrong with this analysis?
2.You hit a tennis ball against a wall. Explain any and all incorrect ideas in the following description of the physics involved: "According to Newton's third law, there has to be a force opposite to your force on the ball. The opposite force is the ball's mass, which resists acceleration, and also air resistance."
Can anyone help me to answer these two questions I really need it right away for today ASAP.
Answers: 2
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Gasoline comes from petroleum, which is made from ancient living things. petroleum, therefore, contains a type of energy. a. heat b. nuclear c. biological d. chemical potential
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Suppose you increase your walking speed from 7 m/s to 13 m/s in a period of 2 s. what is your acceleration?
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If an athlete runs once around a track, back to the starting line, her average velocity is zero. true or false?
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Suppose a diode consists of a cylindrical cathode with a radius of 6.200×10^−2 cm , mounted coaxially within a cylindrical anode with a radius of 0.5580 cm . the potential difference between the anode and cathode is 260 v . an electron leaves the surface of the cathode with zero initial speed (v initial=0). find its speed vfinal when it strikes the anode.
Answers: 1
1. Adam grabs Sarah by the hand and tries to pull her. She tries to remain standing without moving....
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