Aball is thrown up into the air with an initial velocity of 64 ft/sec. the ball is 4 ft above the ground when it is released. its height, in feet, at time t seconds is given by: h(t) = −16t^2 + 64t + 4. what is the time when it reaches its maximum height?

Astone is dropped from a cliff and falls 9.44 meters. what is the speed of the stone when it reaches the ground? a. 13.6 m/sec b. 1.39 m/sec c. 185 m/sec d. 9.80 m/sec

Ascientist wants to test ways to reduce pollution in lake . what is the bestway of doing this

Calculate the minimum energy required to remove one proton from the nucleus 126c. this is called the proton-removal energy. (hint: find the difference between the mass of a 126c nucleus and the mass of a proton plus the mass of the nucleus formed when a proton is removed from 126c.) express your answer with the appropriate units. emin e m i n = nothing nothing request answer part b how does the proton-removal energy for 126c compare to the binding energy per nucleon for 126c, calculated using eb=(zmh+nmn−azm)c2?