A: Some physical properties change, but the substance keeps its identity.
Between the top of the first and the top of the second loop, the coaster has lost potential energy = mgh, where h = 22.2 - 15 = 7.2m
This energy would have converted to Kinetic. Write out an equation and the masses will cancel out. Does that hint help you to find the solution? If not, I will give you another hint.
The current in the 50 Ω resistor is A) 1.2 A
B. The velocity of the second flight is negative compared to the speed.
2.78 X 10^5 is the best answer to be responded to
