4. A ball is thrown vertically upwards and reaches a height of 28.8 m. Ignoring air resistance and g= 10 ms-2 (i) what is the balls velocity at maximum height?

(ii) calculate the initial upward velocity

(ii) the time taken to return to the throwers hand.

Which statements describe the movement of ocean currents around the globe? check all that apply. strong winds force warm water to sink to the ocean floor. the coriolis effect causes warm and cold water to mix. cool dense water sinks to the ocean floor. warm water replaces cool surface water. wind blowing parallel to the shore causes upwelling of cool water.

What changes occur in the brain during the teenage years? 25 points, someone me out!a.) thinking becomes slower as the brain grows larger. b.) connections between neurons become stronger and faster. c.) unused neurons fuse together to form larger, better functioning neurons. d.) more neurons are developed.

The amount of potential energy possessed by an elevated object is equal to