The
1000 kg
ght
on-
5 the density of mercury is 13.6 g/cm3.
calculate the mass of:
a) 1 cm3 of mercury
b) 10 cm3 of mercury

In a heat engine if 1000 j of heat enters the system the piston does 500 j of work, what is the final internal energy of the system if the initial energy was 2000 j? 1. write the equation 2.list out your known variables 3.plug the numbers into the equations 4.solve 5.write your solution statement that includes initial energy and final

What is the coefficient of kinetic friction μk between the block and the tabletop?

Which of the following changes will increase the capacitance of a parallel-plate capacitor? (there could be more than one correct choice.) a) increase the charge on the plates b) decrease the poten5al between the plates c) increase the potential between the plates d) introduce a dielectric material between the plates e) decrease the separation between the plates