19. When 100 J are put into a device that puts out 60 J, the efficiency of the device is (1 Point)
O 40%.
O 50%
O 60%
O 140%
NEED ASAP

The sample with the lowest specific heat capacity will have the greatest temperature increase. in this case, it would be platinum.

Make them both to where they have the denominator of 18that makes 3/2 equal 27/18 and 1/9 equal 2/18so now you have  27/18x+5=2/18subtract 5 from the other sideso now you have 27/18x+2/18-5then subtract 2/18 from 27/18 to get 25/18x=-5then divide 25/18 by -5 and your answer will be  -5/18