Answers: 3
Physics, 21.06.2019 22:30
An engineer designs a roller coaster so that a car travels horizontally for 162 ft, then climbs 127 ft at an angle of 31.0° above the horizontal. it then moves 127 ft at an angle of 46.0° below the horizontal. if we take the initial horizontal motion of the car to be along the +x-axis, what is the car's displacement? (give the magnitude of your answer, in ft, to at least four significant figures and give the direction of your answer in degrees counterclockwise from the +x-axis.)
Answers: 1
Physics, 22.06.2019 00:50
Acave rescue team lifts an injured spelunker directly upward and out of a sinkhole by means of a motor-driven cable. the lift is performed in three stages, each requiring a vertical distance of 10.0 m: (a) the initially stationary spelunker is accelerated to a speed of 4.90 m/s; (b) he is then lifted at the constant speed of 4.90 m/s; (c) finally he is decelerated to zero speed. how much work is done on the 68.0 kg rescue by the force lifting him during each stage?
Answers: 1
Physics, 22.06.2019 08:00
What is the average speed of a car that travels 40mph for 1 hour and 60 mph in another hour will mark brainliest
Answers: 1
Physics, 22.06.2019 16:20
What is the single most important equation in all of physics?
Answers: 1
Satellite A has an orbital radius 3.00 times greater than that of satellite B. Satellite B's orbital...
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