Bob has a choice of using stairs or a loading ramp to move a 125n box. what is the most likely effort force required if he carries the box up the stairs instead of pushing it up the loading ramp? a) 0 n b) 75 n c) 125 n d) 200 n

Explain how the energy of rubber ball is tranforned as it roll down a ramp. give evidence that the energy of the og the ball remains the same at all points on the ramp

How is sound energy produced a. vibrating objects b. objects being heated c. temperature differences d. stationary objects

Why can blue light and yellow light combine to produce white light? question 17 options: they are both primary colors of light. they absorb each other's wavelengths. because blue, yellow, and white are primary colors. they are complementary colors of light.