Agolf ball with an initial angle of 32° lands exactly 224 m down the range on a level course.

(a) neglecting air friction, what initial speed would achieve this result? [m/s]
(b) using the speed determined in item (a), find the maximum height reached by the ball. [m]

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?

Use the right-hand rule for magnetic force to determine the charge on the moving particle. this is a charge.

How will the system respond to a temperature increase?