Physics, 04.02.2020 03:48 adrianaa52
Atennis ball connected to a string is spun around in a vertical, circular path at a uniform speed. the ball has a mass m = 0.158 kg and moves at v = 5.22 m/s. the circular path has a radius of r = 1.1 m 1) what is the magnitude of the tension in the string when the ball is at the bottom of the circle? 2) what is the magnitude of the tension in the string when the ball is at the side of the circle? . 3) what is the magnitude of the tension in the string when the ball is at the top of the circle? 4) what is the minimum velocity so the string will not go slack as the ball moves around the circle?
Answers: 1
Physics, 22.06.2019 19:30, QueenNerdy889
Refrigerant-134a flows through a carnot heat pump cycle at 0.5 kg/s. it is known that the maximum absolute temperature in the cycle is 1.1 times the minimum absolute temperature, and the net power input to the cycle is 2.5 kw. if the refrigerant changes from a saturated vapor to a saturated liquid during the heat rejection process, determine the maximum magnitude of the enthalpy of vaporization for this process in kj/kg (with 3 significant figures).
Answers: 3
Physics, 23.06.2019 06:00, BABA761
How can you improve the percent yield of copper in this lab? check all possible strategies that will you do so. measure reactants precisely. stir to the reaction take place. chill the reactants before combining them. wait patiently until the reaction completes. make sure to recover as much copper as possible.
Answers: 1
Atennis ball connected to a string is spun around in a vertical, circular path at a uniform speed. t...
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