Scientists think that the made of liquid iron and nickel, moves to produce earth s magnetic field.
a. crust
b. mantle
c. outer core
d. inner core

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’s #16 asking me and how do i solve it?

What are some properties of transverse waves?