What is the net force on the book in the Figure below? If the book moves, in
which direction will it move (Left or Right)? PLEASE ANSWER BOTH PARTS
OF THIS QUESTION.

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?

Which are examples of projectile motion? choose all that apply a. a soccer ball rolling across the ground in the northeast direction b. a car turning a corner, so it is heading south c. a javelin flying through the air d. a tennis ball lobbed over the net

Using the work energy theorem. what is the velocity of a 850kg car after starting at rest when 13,000j of work is done to it.