Physics, 03.08.2019 16:00 carolyntowerskemp
Which one of the following states of matter has no definite shape but does have a fixed volume a. liquid b. element c. gas d. solid
Answers: 2
Physics, 21.06.2019 17:30
What produces light and all other electromagnetic waves? a) the photoelectric phenomena b) heated metals c) charged particles d) radioactive samples (pls explain if you can : )
Answers: 1
Physics, 22.06.2019 05:30
Astudent pushes on a 20.0 kg box with a force of 50 n at an angle of 30° below the horizontal. the box accelerates at a rate of 0.5 m/s2 across a horizontal floor. what is the value of the normal force on the box? 200 n 243 n 156 n 225 n
Answers: 2
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 18:30
Both speed and velocity measure how fast something is moving. however, since speed is not a it does not require a(n question 6 options: a) quantity , unit b) magnitude, unit c) scalar, direction d) vector, direction
Answers: 2
Which one of the following states of matter has no definite shape but does have a fixed volume a. li...
Mathematics, 07.05.2020 06:08
Mathematics, 07.05.2020 06:08
Mathematics, 07.05.2020 06:08
English, 07.05.2020 06:08
Mathematics, 07.05.2020 06:08
History, 07.05.2020 06:08
Mathematics, 07.05.2020 06:08
History, 07.05.2020 06:08
Mathematics, 07.05.2020 06:08