What is the change in entropy of the universe
Two blocks of steel (Cp=0.11 Btu/lbm ºF), one at 800ºF and the other at 300ºF are brought into contact in an insulated container and allowed to reach thermal equilibrium. What is the change in entropy of the universe?
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An interest rate of 10% compounded continuously is desired on an investment of $15000. How many years will be required to recover the capital with the desired interest if $2030 is recived each year?
A 2.5-kg particle oscillates on a spring with spring constant 85 N/m. At time t = 1.0s, the particle is at maximum displacement from equilibrium, 7.8 cm. What is the equation of motion of the particle as a function of time? What are the maximum sp
For a situation where safety rules require that the burst pressure of a tank is at least four times the maximum internal pressure expected, determine the burst pressure requirement to be specified for a tank that will contain n-pentane at a maxim
A lens has a focal length of 23.0 cm. Determine (by calculation) the object position for which the resulting image is upright and 4 times the size of the object.
An air intake duct has a 14'x14' opening, the duct is 18' long with an exaust opening at the other end that is 14'x1' giving a 14 to 1 ratio. As a percentage what is the increase in wind velocity coming out?
It is found that the reflected light from a surface is completely polarized when the angle of incidence is 53.8 degrees. What is the index of refraction of the reflecting material?
If the tile-iron has a square surface area 254mm to the side, how much energy has been removed from it during the time it has taken to lift the tile?
In a dice game, if a players rolls a 5 or a 7 she wins $10.00. if she rolls a 9, she wins 5.00 .. the cost to play the game is $2. What is the expection?
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Assess arguments for and against extending voting rights to children and/or adolescents. State whether you are in favor of such an extension
The central nervous system (CNS) is the major integrating center of the body. Which of the following general statements about the CNS and its components is true
The skeletal system is composed of bone and cartilage and has many functions. Choose three of these functions and discuss what features of the skeletal system
The Limits of Political Obligation. Several texts we have studied so far attempt to adjudicate the proper relationship between the citizen and the state.
Describe how gap junctions facilitate cell to cell communication. Provide an example of a tissue or organ that uses gap junctions to communicate
According to Adam Smith, which of the following human sentiments is the strongest of them all given that we are not in survival mode?
State if this is an anthropocentric or ecocentric approach to environmental ethics and (2) explain why you