Answer:
i might know the answer to this, so can you help me with my question too?
Explanation:
Answer:
P = 75 W
Explanation:
given,
Distance, L = 8 m
Force,F = 150 N
Time, t = 16 s
Work by the climber
Work done = Force x displacement
W = F. L
W = 150 x 8
W = 1200 J
We know,
![Power =\dfrac{Work\ done}{time}](https://tex.z-dn.net/?f=Power%20%3D%5Cdfrac%7BWork%5C%20done%7D%7Btime%7D)
![P =\dfrac{1200}{16}](https://tex.z-dn.net/?f=P%20%3D%5Cdfrac%7B1200%7D%7B16%7D)
P = 75 W
Hence, Power climber is using to climb is equal to 75 W.
Answer:
V = f λ speed of wave in terms of frequency and wavelength
t = S / V time for wave to travel a distance S
t = 91.4 m / 344.5 m/s = .265 sec time to travel 91.4 m
Answer:
Second Choice.
Explanation:
Jack's Power = W/t
Jill's Power = 2W/(0.5)*t
2/0.5 = 4
Jill's Power = 4*W/t
Jill's Power is 4 times greater than Jack's
Second Choice