Physics, 08.04.2020 01:54, leilaford2003
6. A 2-kg ball B is traveling around in a circle of radius r1 = 1 m with a speed (vB)1 = 2 m/s. If the attached cord is pulled down through the hole with a constant speed vr = 0.5 m/s, determine how much time is required for the ball to reach a speed of 4 m/s. How far r2 is the ball from the hole when this occurs? Neglect friction and the size of the ball.
Answers: 1
Physics, 22.06.2019 19:00, marxusalexander4069
Why do different substances have diffrent properties
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Physics, 22.06.2019 20:50, dorkygirl
An ideal otto cycle has a compression ratio of 8. at the beginning of the compression process, air is at 95 kpa and 27°c, and 750 kj/kg of heat is transferred to air during the constant-volume heat-addition process. assuming constant specific heats at room temperature, determine (a) the pressure and temperature at the end of the heat-addition process, (b) the net work output, (c) the thermal efficiency, and (d) the mean effective pressure for the cycle. (4390 kpa, 1730 k; 423 kj/kg; 56.4%; 534 kpa)
Answers: 1
6. A 2-kg ball B is traveling around in a circle of radius r1 = 1 m with a speed (vB)1 = 2 m/s. If t...
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