Physics, 16.01.2022 09:10 robert7248
Which action will decrease the gravitational force between two objects?
A. Reducing the masses of the objects
B. Increasing the charge on one of the objects
C. Adding mass to one of the objects
D. Moving the objects closer together
Answers: 2
Physics, 22.06.2019 12:30
Awheel of mass 48 kg is lifted to a height of 0.8 m. how much gravitational potential energy is added to the wheel? acceleration due to gravity is g = 9.8 m/s2. a. 30.4 j b. 3.1 j c. 297.9 j d. 11,321 j
Answers: 1
Physics, 22.06.2019 14:20
4r-134a enters the condenser of a residential heat pump at 800 kpa and 50°c at a rate of 0.022 kg/s and leaves at 750 kpa subcooled by 3°c. the refrigerant enters the compressor at 200 kpa superheated by 4°c determine (a) the isentropic efficiency of the compressor, (b) the rate of heat supplied to the heated room, and (c) the cop of the heat pump. also, determine (d) the cop and rate of heat supplied to the heated room if this heat pump operated on the ideal vapor-compression cycle between the pressure limits of 200 and 800 kpa. (0.757, 4.37 kw, 5.12, 6.18, 3.91 kw)
Answers: 3
Physics, 22.06.2019 14:30
Which of the following bonds would be most polar? a. c-i b. c-br c. c-cl d. c-f e. c-o
Answers: 1
Physics, 22.06.2019 19:40
12. a body is a particular amount of matter. it can be a solid, liquid or gas. it can be described as existing in a. size and shape. b. motion and force c. time and space. d. location and movement.
Answers: 2
Which action will decrease the gravitational force between two objects?
A. Reducing the masses of...
Mathematics, 22.02.2020 22:41
History, 22.02.2020 22:41
Mathematics, 22.02.2020 22:41
Mathematics, 22.02.2020 22:41
Mathematics, 22.02.2020 22:42
History, 22.02.2020 22:42
Mathematics, 22.02.2020 22:42
Mathematics, 22.02.2020 22:42
Mathematics, 22.02.2020 22:43