15. during a power shutdown a room is losing thermal energy at a rate of 1.0-kw due to heat transfer through its walls to the street. find the increase of entropy of a "mini-universe" (the room and the street) during 1 hour, assuming the temperature of the room +20°c does not change noticeably during this time, while temperature in the street outside remains -10°c. a) 1.40 kj/k b) 0.89 kj/k c) 1.68 kj/k d) 1.96 kj/k e) 2.24 kj/k

Which articulations allow for greatest range of motion?

At an oceanside nuclear power plant, seawater is used as part of the cooling system. this raises the temperature of the water that is discharged back into the ocean. the amount that the water temperature is raised has a uniform distribution over the interval from 10° to 25° c. what is the standard deviation of the temperature increase?

(a) assume the equation x = at^3 + bt describes the motion of a particular object, with x having the dimension of length and t having the dimension of time. determine the dimensions of the constants a and b. (use the following as necessary: l and t, where l is the unit of length and t is the unit of time.) (b) determine the dimensions of the derivative dx/dt = 3at^2 + b. (use the following as necessary: l and t, where l is the unit of length and t is the unit of time.)