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A hot water stream at 80 degrees C enters a mixing chamber with a mass flow rate of 0.5kg/s where it is mixed with a stream of cold water at 20 degrees C. If it is desired that the mixture leave the chamber at 42 degrees C,
Determine the mass flow rate of the cold water stream. (assume all streams are at pressure of 250 kPa)
A rescue plane wants to drop supplies to isolated mountain climbers on a rocky ridge 235 m below. With what speed do the supplies land in the latter case
A sample contains radioactive atoms of two types, A and B. Initially there are five times as many A atoms as there are B atoms. obtain the half life in hours
Gas is confined in a tank at a pressure of 12.9 atm and a temperature of 28.3°C. what is the new pressure in the tank
An outfielder makes a throw directly to home plate which is 94.2m away, Determine where the ball lands relative to home plate
question1there are two identical vessels a and b of volume v each one empty and other containing the block of wood of
A 4 g bullet has a speed of 250 m/s and embeds itself into a450 g block. How far does the block slide after the collision before coming to rest
A 54.0 kg skateboarder wants to just make it to the upper edge of a "quarter pipe," a track that is one-quarter of a circle with a radius of 3m. What speed does he need at the bottom?
A 2.10-kg block is suspended from a spring with a spring constant of 480.0 N/m. A 0.070-kg bullet is fired into the block from directly below with a speed of 130.0 m/s, Find the amplitude of the subsequent motion
Sam pushes a 10.0-kg sack of bread flour on a frictionless horizontal surface with a constant horizontal force of3.0N starting from rest. What is the speed of the sack after Sam has pushed it a distance of10cm
In the high jump, Fran's kinetic energy is transformed into gravitational potential energy without the aid of a pole. With what minimum speed must Fran leave the ground
Find the magnetic energy stored in the air gap between two very large magnetic pole pieces, one North, one South, each with an area of 100 cm2. Assume the 0.05 T magnetic field is uniform within the 2-cm gap.
A toy train is pushed forward and released at = 2.0 with a speed of 1.5 . It rolls at a steady speed for 2.8 , then one wheel begins to stick. The train comes to a stop 5.6 from the point at which it was released. Elucidate the train's accelera..
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