Physics, 28.09.2021 23:00 QueenLife4869
9. Calculate the force on an object that has a mass of 10 kg and an acceleration of 4 m/s2.
A. 40 N
B. 8N
C. 2.5 N
D. 0.4 N
Answers: 2
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It's a snowy day and you're pulling a friend along a level road on a sled. you've both been taking physics, so she asks what you think the coefficient of friction between the sled and the snow is. you've been walking at a steady 1.5m/s, and the rope pulls up on the sled at a 32 ∘ angle. you estimate that the mass of the sled, with your friend on it, is 65 kg and that you're pulling with a force of 80 n .
Answers: 1
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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).
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9. Calculate the force on an object that has a mass of 10 kg and an acceleration of 4 m/s2.
A. 40...
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