A61.5-kg basketball player jumps vertically and leaves the floor with a velocity of 1.62 m/s upward. (take upward as positive and forward as positive.) (a) what impulse does the player experience? magnitude 99.63 correct: your answer is correct. n â· s direction correct: your answer is correct. (b) what force does the floor exert on the player before the jump? magnitude 602.7 correct: your answer is correct. n direction correct: your answer is correct. (c) what is the total average force exerted by the floor on the player if the player is in contact with the floor for 0.450 s during the jump? magnitude 370.845 incorrect: your answer is incorrect. your response differs from the correct answer by more than 10%. double check your calculations. n direction correct: your answer is correct.

One day, after pulling down your window shade, you notice that sunlight is passing through a pinhole in the shade and making a small patch of light on the far wall. you see that the patch of light seems to be a circular diffraction pattern. it appears that the central maximum is about 1 cm across and you estimate that the distance from the window shade to the wall is about 3 m. what is (a) the average wavelength of sunlight? (b) the diameter of the pinhole?

How do the measurements of charge at the different locations on the sphere compare to each other? the charge measurements are different at all locations on the sphere. the charge measurements are virtually not the same at all locations on the sphere except for the charge at the very top and at the very bottom that are equal. the charge measurements are virtually the same at all locations on the sphere except for the charge at the very top. at the top, the conductive sphere has a small disk that is made of different material. the charge measurements are the same at all locations on the sphere. what happens to the charge on the conductive sphere when it is connected to a source of charge such as the electrostatic voltage source? nothing will happen because no charge goes around the surface of the sphere. the charge on the conductive sphere spreads out over the surface of the sphere; being greater in some specific locations on the sphere. the charge on the conductive sphere spreads out uniformly over the surface of the sphere. the charge on the conductive sphere spreads out non-uniformly over the surface of the sphere.

Aperson walks first at a constant speed of 4.89 m/s along a straight line from point a to point b and then back along the line from b to a at a constant speed of 2.95 m/s. what is the average speed over the entire trip?