Consider the equation y = 10^(4x). Which of the following statements is true? A plot of log(y) vs. x would be linear with a slope of 4.

A plot of log(y) vs. log (x) would be linear with a slope of 10.

A plot of log(y) vs. x would be linear with a slope of 10.

A plot of y vs. log(x) would be linear with a slope of 4.

A plot of log(y) vs. log (x) would be linear with a slope of 4.

A plot of y vs. log(x) would be linear with a slope of 10.

The thermal expansion or contraction of a given metal is a function of the f a)-density b)-initial temperature c)- temperature difference d)- linear coefficient of thermal expansion e)- final temperature f)- original length

Athin walled concentric tube exchanger is used to cool engine oil from 160°c to 60°c with water that is available at 25°c acting as a coolant. the oil and water flow rates are each at 2 kg/s, and the diameter of the inner tube is 0.5 m and the corresponding value of the overall heat transfer coefficient is 250 w/m2. oc. how long must the heat exchanger be to accomplish the desired cooling? cpwater=4.187 kj/kg-candcpengine el=2.035 kj/kg·°c, oil . 120]

Ahe-xe mixture containing a 0.75 mole fraction of helium is used for cooling electronics in an avionics application. at a temperature of 300 k and atmospheric pressure, calculate the mass fraction of helium and the mass density, molar concentration and molecular weight of the mixture. if the cooling capacity is 10 l, what is the mass of the coolant?