An inventor claims to have developed a wonderful new heat engine that operates with a relatively cool (and therefor nonpolluting) flame at 190 degrees celcius, and discharges waste heat to the environment at 20 c. his promotional literature advertises that 45 percent of the fuel energy is converted into useful work. calculate the maximum efficiency that can be expected for such an engine. (if your answer is 45 percent, enter .45) (is he scamming you or not? )

Asap time is ! best answer gets compose at least one well-developed paragraph on the following: define the term concurrent powers, and give an example of a concurrent power of government.

You can watch static electricity in action by rubbing an inflated balloon against your hair. your hair will actually stand on its end! it does this because each hair becomes charged, and they all repel one another.

Due sun 06/09/2019 11: 59 pm skip navigation questions correct q 1 [1/1] correct q 2 [1/1] correct q 3 [1/1] untried q 4 (0/1) untried q 5 (0/1) untried q 6 (0/1) untried q 7 (0/1) untried q 8 (0/1) untried q 9 (0/1) untried q 10 (0/1) grade: 3/10 print version start of questions two cyclists, 42 miles apart, start riding toward each other at the same time. one cycles 2 times as fast as the other. if they meet 2 hours later, what is the speed (in mi/h) of the faster cyclist?