A projectile is launched with an initial velocity of (40 m/s), at an angle of (30°) above horizontal. What is the maximum height (ymax) reached by the projectile?
(Use g=10 m/s2).

What causes the development of most clouds and precipitation in the atmosphere?

Which describes increasing the efficiency of energy resource

An athlete swings a ball, connected to the end of a chain, in a horizontal circle. the athlete is able to rotate the ball at the rate of 8.13 rev/s when the length of the chain is 0.600 m. when he increases the length to 0.900 m, he is able to rotate the ball only 6.04 rev/s. (a) which rate of rotation gives the greater speed for the ball? 6.04 rev/s 8.13 rev/s (b) what is the centripetal acceleration of the ball at 8.13 rev/s? m/s2 (c) what is the centripetal acceleration at 6.04 rev/s? m/s2