Physics, 09.10.2019 10:30 colochaortiz20p7cajw
Robert has just bought a new model roket, and is trying to measure its flight characteristics. the rocket engine package claims that it will maintain a constant thrust of 11.4 n until the engine is used up. robert launches the rocket on a windless day, so that it travels straight up, and uses his laser range-finder to measure that the height of the rocket when the engine cuts off is 19.0 m. he also measures the rocket's peak height, which is 23.5 m. if the rocket has a mass of 0.613 kg, how much work is done by the drag force on the rocket during its ascent?
Answers: 2
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Modern physics a photon emitted from an excited hydrogen atom has an energy of 3.02 electron volts. which electron energy-level transition would produce this photon? a. n=1 to n=6 b. n=2 to n=6 c. n=6 to n=1 d. n=6 to n=2 i chose b but the correct answer is d can someone tell me why? and what's the difference?
Answers: 1
Physics, 22.06.2019 13:50
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Robert has just bought a new model roket, and is trying to measure its flight characteristics. the r...
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