Physics, 15.06.2020 05:57 hannahgracew12
A 70kg man is moving with a speed of 3.2 m/s on a rough surface, his speed was decreasing uniformly until he reaches to a stop because of the friction of the rough surface. Calculate the friction force exerted on the man.
Answers: 3
Physics, 22.06.2019 13:10
Aplane flying horizontally at an altitude of 1 mile and a speed of of 500mih passes directly over a radar station. find the rate at which the distance from the plane to the station is increasing when it is 2mi away from the station.
Answers: 1
Physics, 22.06.2019 14:30
What is the relationship between the direction of motion of the balloon and the wind currents
Answers: 1
Physics, 22.06.2019 19:30
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 01:30
The electric field inside a cell membrane is 8.0mn/c. what's the force on a singly charged ion in this field?
Answers: 1
A 70kg man is moving with a speed of 3.2 m/s on a rough surface, his speed was decreasing uniformly...
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