Which best describes the heat that you can feel on the engine of a running car? The heat is unusable and absorbed by the engine.
The heat is usable and absorbed by the engine.
The heat is unusable and lost to the surroundings.
The heat is usable and lost to the surroundings.

For the below questions, consider a consumer that consumes two goods, x and z with the following utility function. u with bar on top space equals space x to the power of 1 third end exponent z to the power of 2 over 3 end exponent suppose initial values for income and the prices of goods x and z are y equals 90, p subscript x equals space 10, and p subscript z equals 15 respectively, then the price of good x falls to syntax error from line 1 column 89 to line 1 column 100. unexpected '\'.. what is the magnitude of the total effect