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(a) How much heat flows from 1.00 kg of water at 42.0°C when it is placed in contact with 1.00 kg of 16°C water in reaching equilibrium?
J
(b) What is the change in entropy due to this heat transfer?
J/K
(c) How much work is made unavailable, taking the lowest temperature to be 16°C?
Compute the impedance of a series R-L-C circuit at angular frequencies of ?1= 1000rad/s , ?2= 715rad/s and ?3= 545rad/s, What is the phase angle of the source voltage with respect to the current
Ray decides to paint the outside of his uncle's house. He uses a 4.0-m-long board supported by cables at each end to paint the second floor. find the force that the right cable exerts on the board
A 9.0 x 10 -2 ice cube at 0.0C is dropped into a Styrofoam cup holding 0.35 kg of water at 12C, Find the amount of ice remaining
Suppose he hits the ball with a speed of 29 m/s at an angle of 26° above the horizontal. Explain how long was the ball in flight? How far did it travel?
The objective of a certain lens system is a double convex lens of 10.2 cm focal length; how far is the image from the eyepiece
A cooking vessel on a slow burner contains 11.2 kg of water and an unknown mass of ice in equilibrium at 0°C at time t = 0. determine the initial mass of ice
A tennis player receives a shot with the ball of mass 0.060kg travelling horizontally at v=43 m/s and returns the shot with the ball travelling horizontally at 60.00 m/s in the opposite direction.
Steam is expanded from 12.5 MPa and 900 degrees Celsius to 0.30 MPa, 400 degrees Celsius in an adiabatic turbine. Determine the power output by this turbine
A heat pump extracts 7.0*10^6 J heat per hour from a well at 280K and delivers its output heat into a house at 320K. what minimum work must be supplied to the heat pump per hour
A cord with a mass of 500g is tied between two supports. The tension in the cord is 35N and it takes a wave 0.55s to travel from one end to the other. How long is the cord
The decay of a fictitious nucleus is accompanied by the emission of a gamma ray with wavelength 2.48*10-2 nm. What is the difference between these two levels
Blocks A and B are connected across a frictionless pulley by a cord of negligible weight. If block B lies on a horizontal, frictionless surface and block A hangs vertically, what can be said about the acceelration of block B?
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