instead of rolling down the ramp over the step, imagine the ball falls off the back of the ramp and directly to the ground. what is the amount of potential energy remaining after the ball lands on the ground

Which of the following correctly describes the early view of catastrophism?

When many atoms are split in a chain reaction, a large explosion occurs. this is an example of what type of energy conservation

An ideal polarizer with its transmission axis rotated 30 degrees to the vertical is placed in a beam of unpolarized light of intensity 10w/m^2. after passing through the polarizer, what is the intensity of the beam? a. 8.7 w/m^2 b. 7.5 w/m^2 c. 5.0 w/m^2 d. 10 w/m^2 e. 2.5 w/m^2