4. In 1978, Geoff Capes of the United Kingdom won a competition for throwing 5 lb bricks; he threw one brick a distance of 44.0 m. Suppose the brick left Capes' hand at a velocity of 20.8 m/s
at 45.0° with respect to the horizontal.
(a) What was the maximum height reached by the brick?
(b) If Capes threw the brick straight up with the same initial velocity, what would be the
maximum height the brick could achieve?

Aregion of space in which a measurable gravitational force is indicated by the force exerted on a test mass is called

If it takes a planet 2.8 x 10^8 s to orbit a star with a mass of 6.2 x 10^30 kg what is the average distance between the planet and the star

Awater slide of length l has a vertical drop of h. abby's mass is m. an average friction force of magnitude f opposes her motion. she starts down the slide at initial speed vi. use work-energy ideas to develop an expression for her speed at the bottom of the slide. then evaluate your result using unit analysis and limiting case analysis. express your answer in terms of the variables h, m, l, vi, f and appropriate constants. vf v f