768.57 / 41.1 = 18.7 m per hr
Answer:D
Step-by-step explanation:
Hope this was right.
Let r represent reptiles
210=3r-120
330=3r
110=r
110 reptiles
Answer:
Child bye
Step-by-step explanation:
Answer:
(a) Speed = 6.875 m/s
(b) Kinetic Energy = 1.70 kJ
(c) Average power = 1.06 kW
Step-by-step explanation:
Given:
d = 5.5 m
t = 1.6 s
W = 706 N
Part (a)
Using the equation of motion with the assumption of zero initial speed:


The speed of the sprinter then become:

Part (b)
Convert the weight of the sprinter to mass:



KE (Kinetic Energy) can then be calculated as:



Part (c)
The change of the kinetic energy is equivalent to the work done by the sprinter. The average power P is the rate of the work done and can be calculated as


