To study how high a ball bounces student drop the ball from various heights. the function h(t)=- 16t^2=h 0 gives the height in feet of ball at the time t measured in seaconds since the ball was dropped from a height of h 0 . if the ball was dropped from a height of 8 feet find the elapsed time until the ball hits the floor

The ball hit the floor at 128

Step-by-step explanation:

sub in 8 into the equation

h (8)=- 16 (8)^2=0

h (8)=- 16 (64)=0

h (8)=- 1024=0

8h=0+1024

8h=1024

h=128

step-by-step explanation:

step-by-step explanation:

we can use this expression to calculate the energy gain as a particle moves with a field or the energy loss as it moves against it. (note that it is also used to define the electron-volt, a unit of energy equal to that gained by an electron as it falls through a pd of 1 v, i.e. w = 1 ev = 1.6 10-19 c 1 v = 1.6 10-19j).in fact this expression is really nothing more than the statement that potential is the potential energy per unit charge. in this case, v= w/qis simply stating that the change in potential energy(or work done) per unit charge is equal to the change in potential (or potential difference), v.student questions: uniform electric fields2electron beamcathode+5 kvanode0 v