Physics, 20.07.2019 13:30 fergusonemily6433
What is the correct formula for finding the frequency of an electromagnetic wave a. f=c-a b. f=a/c c. f=a+c d. f=c/a
Answers: 1
Physics, 21.06.2019 19:00
Modify the equation fδt=δ (mv) to find the force of friction.
Answers: 2
Physics, 22.06.2019 02:30
The human body stores chemical energy from digested food. some of the chemical energy is converted into mechanical energy when the body moves. which statement best supported by this information
Answers: 3
Physics, 22.06.2019 18:10
Arefrigerator uses r-134a as the working fluid and operates on the ideal vapor-compression refrigeration cycle except for the compression process. the refrigerant enters the evaporator at 120 kpa with a quality of 34 percent and leaves the compressor at 70°c. if the compressor consumes 450 w of power, determine (a) the mass flow rate of the refrigerant, (b) the condenser pressure, and (c) the cop of the refrigerator. (0.00644 kg/s, 800 kpa, 2.03)
Answers: 1
Physics, 22.06.2019 19:30
A47.2 g block of copper whose temperature is 480 k is placed in an insulating box with a 91.8 g block of lead whose temperature is 200 k. (a) what is the equilibrium temperature of the two-block system? (b) what is the change in the internal energy of the two-block system between the initial state and the equilibrium state? (c) what is the change in the entropy of the two-block system? the heat capacities of copper and lead are 386 j/kg·k and 128 j/kg·k, respectively.
Answers: 1
What is the correct formula for finding the frequency of an electromagnetic wave a. f=c-a b. f=a/c c...
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