Answer: The rod must be pulled away from the ball
Explanation: I just took this quiz
Answer:
Alaska: Hydrokinetic Energy Campbell CR9000X used for in-stream hydrokinetic device evaluation. Marine hydrokinetic energy power generation is an emerging sector in the renewable energy portfolio. Hydrokinetic devices convert the energy of waves, tidal currents, ocean currents or river currents into electrical power.
Answer:
a)t = 0.323 sec
b)t'= 0.323 sec
c)|h|= 0.52 m
d)y=1.56 m
Explanation:
The speed of ball ,U=104 km/h
U = 104 x 5/18 m/s =28.88 m/s
x= 18.3 m
a)
The half of distance = 18.3/2=9.15 m
We know that
Distance = Velocity x time
9.15 = 28.28 .t
t = 0.323 sec
b)
The total time to cover distance 18.3 m
18.3 = 28.88 x T
T=0.646 m
So the second half distance will cover in t' time
t' = T -t
t' = 0.646 - 0.323
t' = 0.323 s
c)
Initial velocity in y direction is zero.
Vo= 0
h= - 0.52 m ( this is displacement and we know that it is a vector)
So magnitude of |h|= 0.52 m
d)
H= - 2.08 m
|H|= 2.08 m
So the in second half y = H- h
y= 2.08 - 0.52 m
y=1.56 m
This depends entirely on the type of transformation of energy that is taking place, mechanical to thermal, thermal to mechanical, etc. But energy is always conserved, although it may take a different form.
The slope of distance/time is velocity. (Actually speed.) . . . The slope of velocity (actually speed)/time is acceleration. ... The slope of acceleration/time has a name, but this website misundersttod it and would not let me post it. Nobody ever talks about it.