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0.5 kg of saturated vapor (H2O) at 1.5 bars is contained in a piston-cylinder device. Heat transfer in the amount of 150 kJ to the steam occurs and some work is done on the steam by a impellor. At the end of this process the steam is at 1.5 bars and 400 C. Assuming the pressure of the steam was constant throughout the process determine the work transfer by the impellor.
A snow maker at a resort pumps 260 kg of lake water per minute and sprays it into the air above a ski run. how much heat does the snow-making process release each minute
a loaded cart has a total mass of 227kg.if a 312n force acting at an angle of 30degree to the ground is applied. how
A prospector finds a solid rock composed of granite (? = 2650 kg/m3) and gold. What percentage of the rock is gold by volume
q1. assuming that the maximum amplitude of the field at point o for the wave from midway between the slits is er now
A solar cell generates a potential difference of 0.0984 V when a 500 ? resistor is connected across it, What is the internal resistance of the solar cell
You are in a space shuttle traveling in the circular orbit, which is 410 km above the Earth. How long will it take you to catch up with your friend if you reduce your orbital radius by 1 km
The Antarctic Circumpolar Waves propagates around the Antarctic continent during a period of about 8-9 years. What is the average speed of the perturbation
Suppose a particle with mass m is released from rest in a uniform gravity g, write down the relativistic equation of motion and find an expression that gives the relationship between velocity and time
A 15kg crate is moved along a horizontal floor by pulling on it with a rope that makes a 30 degree angle with the horizontal, How much work is done by the normal force and frictional force, What is the net work
A uniform rod rotates in a horizontal plane about a vertical axis through one end. The rod is 13.00 m long, weighs 21.67 N, Calculate the rotational inertia of the rod
The assembly made with massless strings attached to balls. Ball A (m=0.3kg) is released from height 0.2m above ball B (m=0.5kg) also at rest. What max height does each ball achieve after collision
The prong of a tuning fork moves back and forth when it is set into vibration. what are the maximum velocity and the maximum acceleration of the prong
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