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A 0.2 m^3 rigid tank initially contains refrigerant 134a at 1 MPa, saturated vapor. The tank is connected to a supply line that contains refrigerant 134a at 1.2 MPa, 30 degrees C. Refrigerant is allowed to enter the tank until the tank contains saturated liquid at 1.2 MPa Determine:
a. the mass of refrigerant that has entered the tank (kg)b. the final temperature in the tank (degrees C)c. the amount of heat transfer (kJ).
A supply plane needs to drop a package of food to scientists working on a glacier in Greenland. How far short of the target should it drop the package
Consider a rocket which has two combustion rates, ?1 = 4 kg/s and ?2 = 8 kg/s. The relative speed of the exhaust gas is 90 m/s in either case. Determine the final speed of the rocket
A horizontal wire of length 0.43 m, carrying a current of 6.9 A, is placed in a uniform external magnetic field. Determine the magnitude of the external magnetic field
A submarine dives to a depth of 157 feet in the ocean. What is the force (in pounds) acting on a hatch
A space vehicle is traveling at 4450 km/h relative to the Earth, What is the speed (km/h) of the command module relative to Earth after the separation
The internal energy of a gas is 1000 J. The gas is compressed adiabatically, and its volume decreases by 500 cm3. what is the internal energy of the gas
Larger animals have sturdier bones than smaller animals. A mouse's skeleton is only a few percent of its body weight, compared to 16% for an elephant. what fraction of the tensile strength is the stress on the femur
When an x-ray photon with wavelength = 0.070nm strikes an electron at rest, What is the maximum angle through which it may be scattered
Pushing on the pump of a soap dispenser compresses a small spring. When the spring is compressed 0.45 {\rm cm}, its potential energy is 0.0030 {\rm J}. Find the distance through which the strip is flexed
A swimmer looks upward from the bottom of a 3.5-m-deep swimming pool. How far from the swimmer does the board appear to be
Tarzan swings on a 31.0m vine initially inclined at an angel of 28.0 degrees to the vertical. What is his speed at the bottom of the swing if he pushes himself with a speed of 2.5m/s
An electron starts from rest 32.5 cm from a fixed point charge with Q=-0.125 µC. How fast will the electron be moving when it is very far away
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