What is the centripetal acceleration of a bicycle wheel of radius 0.15 m when the bike is moving 4.25 m/s?

Aball is thrown upward in the air, and its height above the ground after t seconds is h ( t ) = 57 t − 16 t 2 feet. find the time t when the ball will be traveling upward at 14.25 feet per second.

What component of earth’s atmosphere exists entirely as a result of photosynthesis?

1kg of water needs to recieve 4200j of energy to go from 90 degrees to 91 degrees. what is the specific heat capacity of water? what are the units?