Suppose you are standing on the edge of a dock and jump straight down. if you land on sand your stopping time is much shorter than if you land on water. using the impulse-momentum theorem as a guide, determine which one of the following statements is correct.

(a) in bringing you to a halt, the sand exerts a greater impulse on you than does the water.

(b) in bringing you to a halt, the sand and the water exert the same impulse on you, but the sand exerts a greater average force.

(c) in bringing you to a halt, the sand and the water exert the same impulse on you, but the sand exerts a smaller average force.

What would be the result of an alpha particle coming into a magnetic field? a) the alpha particle will stop moving. b) the alpha particle will reverse its direction. c) the alpha particle will be deflected in a curve path. d) the alpha particle will continue to travel in a straight line.

Which is an advantage of subdividing science into different areas?

You are the coordinator for a program that is going to take place at night in a rectangular amphitheater in the mountains. you will have no access to any electricity, but you must be able to illuminate the entire grounds. you know the intensity of the light from a lantern varies inversely as the square of the distance from the lantern. suppose the intensity is 90 when the distance is 5 m. a. write an equation to model the situation. b. solve for the constant of variation. c. write the equation to model the situation using the constant () of variation. d. you have been given lanterns with 40 light intensity. use your equation to solve for the distance from the lantern. e. you need to illuminate 225 km. how many meters do you need to light? f. how many lanterns will you need?