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Refrigerant 134a enters a compressor operating at steady state as saturated vapor at 0.12 MPa and exits at 1.2 MPa and 70oC at a mass flow rate of 0.108 kg/s. As the refrigerant passes through the compressor, heat transfer to the surrounding occurs at a rate of 0.32 kJ/s.
Determine at steady state the power input to the compressor, in kW.
The water jet of a fountain is let out at a speed of 80 ft/s and an angle of 60 degrees. determine the radius of curvature of the jet at its highest point
Suppose that a simple pendulum consists of a small 61 g bob at the end of a cord of negligible mass. find the pendulums maximum kinetic energy
A tennis ball is thrown straight up with an initial speed of 20 m/s, What is the ball's acceleration at its maximum height
The component of the external magnetic field along the central axis of a 69-turn coil of radius 23.0 cm decreases from 1.90 T to 0.400 T in 1.70 s. what is the magnitude of the induced current in the coil
If three 0.8 m fan blades are connected to a motor and accelerated uniformly from rest to 54 rpm in 7 minutes. Determine the angular acceleration of the blades.
a rifle has the mass of 4.5 kg and it fires a bullet mass 10.0 at a muzzle speed of 820 m/s. What is the recoil speed as the bullet leaves the gun barrel
On a highly polished, essentially frictionless lunch counter, a 0.500 kg submarine sandwich moving 3.00 m/s to the left collides with an 0.250 kg grilled cheese sandwich moving 1.20 m/s to the right. How much mechanical energy dissipates in the col..
The pressure-volume graph shows an engine cycle where the working substance is an ideal monatomic gas (? = 5/3). The process A-B is adiabatic. calculate the heat removed from the gas
A 45.0-g object connected to a spring with a force constant of 30.0 N/m oscillates with an amplitude of 4.00 cm on a frictionless, horizontal surface. calculate the total energy of the system
A knob on a turning table rotates circularly with a constant speed of 0.78 m/s in a cirlce with radius= 0.35m. What is the maximum acceleration of the shadow
A 0.5 kg mass attached to a linear spring, with spring constant 5 N/m and damping constant 0.2 kg/s, What is the natural frequency of oscillation
A transverse wave is propagation on water surface and is described by the equation y=0,01sin[(1,0)x + (30) t ], find the magnitude of velocity of the particle's displacement
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