An object is thrown upward at a speed of 64 feet per second by a machine from a height of 16 feet off the ground. the height h of the object after t seconds can be found using the equation h=−16t^2+64t+16when will the height be 73 feet? round to two places.

Lacie kicks a football from ground level at a velocity of 13.9 m/s and at an angle of 25.0° to the ground. how long will the ball be in the air before it lands? round your answer to the nearest tenth. s how far will the football travel before it lands? round your answer to the nearest tenth. m

If you held a stone over the mouth of a well and then let it go , what would happen to the stone? explain your answer.

In a star, nuclear fusion occurs in the a. photosphere. b. corona. c. radiative zone. d. core.