Answer:
P = 1097 Watt
Explanation:
given,
length of stairs, L = 130 m
inclination with horizontal,θ = 30°
mass of the football player = 105 Kg
time = 61 s
we know,
Work = change in Potential energy
h = L sin 30°
h = 130 x 0.5
h = 65 m
W = m g h
W = 105 x 9.8 x 65
W = 66885 J
now,
P = 1097 Watt
hence, the power output on the way is 1097 W
Answer:
the image can be rather real or virtual
Answer:
ΔS = 7.618 J/K
Explanation:
The entropy change associated to an isothermal process is:
ΔS = 
We can calculate Q (heat) how:
Q = nRTln(
)
Where Vf = 2.5v
Vi = v
R = 8.314J/mol.k (Constant of ideal gases)
n: Number of moles = 1 mol
Then
Q = nRTln(2.5)
ΔS = 
ΔS = (1)(8.314)ln(2.5)
ΔS = 7.618 J/K
Answer:
Solar radiation
Explanation:
Visible light, ultraviolet light, infrared, radio waves, X-rays, and gamma rays.
cant really answer here with text but at the top of the slide it should br positives and towards the bottom its negative.
This is because you go faster at the top of the slide than the bottom and when your at the bottom you slow down
