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A 3-ft3 rigid tank initially contains refrigerant-134a at 100 psia and 100 percent quality. The tank is connected by a valve to a supply line that carries refrigerant-134a at 140 psia and 80°F. The valve is now opened, allowing the refrigerant to enter the tank, and is closed when it is observed that the tank contains only saturated liquid at 120 psia. Determine
(a) The mass of the refrigerant that entered the tank, (b) the amount of heat transfer with the surroundings at 110°F, and
(c) The entropy generated during this process.
Atwood's Machine The two masses (m1 = 5.1kg and m2 = 2.5kg ) in the Atwood's machine are released from rest, with m1 at a height of 0.95m above the floor. Determine the pulley's mass
A 0.80 kg body oscillates on a spring that, when extended 3.0 mm from equilibrium, has a restoring force of 5.0 N. find the angular frequency of oscillation
A ball and bat, approaching one another each with the same speed of 1.1 m/s collide. Find the speed of the ball after the collision. find the factor by which the kinetic energy of the ball increases
a baseball pitcher throws a 145 g baseball parallel to the ground with a speed of 36.29 ms in the x direction. the
A bungee cord is 45.0m long when un-streched. A 1.70m tall jumper (mass 70kg), with both feet tied to the cord, falls from a bridge 85m above the river. what is the speed of the jumper
An object weighing 340 Newton in air is immersed in water after being tied to a string connected to a balance. The scale now reads 250 Newton, Compute what is the density of the oil
Three identical +1.00 μC charges are on the vertices of an equilateral triangle. Each side measures 0.500 meter. Find the total electrical potential energy for this arrangement of charges
You have to be in the southern hemp to see the Magellanic Clouds. How far south do you have to go for them to be about 35 degrees above the southern horizon at its highest
A custom car built for pretentious people has two brass horns that are supposed to produce the same frequency, What beat frequency is produced
a pendulum is made with a 4 kg mass suspended at the end of a 75 cm thin rod. the pendulum started at an angle of 20
Two point charges are fixed to rectangular coordinate system, Charges of q1 = 3.5uC and q2 = -15 uChave coordinates (0.55,0) and (0,0) in meters respectively
A block of mass 0.6 kg is moving up a 40 degree inclined plane at a speed of 2 m/s. how far up the plane will the block go before stopping
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