Physics, 25.08.2019 14:30, jaydenbomkamp6084
Robert has just bought a new model rocket, and is trying to measure its flight characteristics. the rocket engine package claims that it will maintain a constant thrust of 13.8 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 meaure that the height of the rocket when the engine cuts off is 14.6 m. he also measures the rocket\'s peak height, which is 19.1 m. if the rocket has a mass of 0.663 kg, how much work is done by the drag force on the rocket during its ascent?
Answers: 1
Physics, 23.06.2019 03:50, ginger87771
Acar driving 22.7 m/s on flat ground drives off a 42.3 m high cliff. how much time does it take to reach the ground?
Answers: 1
Physics, 23.06.2019 06:30, JANA279
If a car is traveling on the highway at a constant velocity, the force that pushes the car forward must be a. equal to the weight of the car. b. less than the force of friction exerted upon the car. c. equal to the force of friction exerted upon the car. d. greater than the weight of the car.
Answers: 1
Robert has just bought a new model rocket, and is trying to measure its flight characteristics. the...
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