the rapid movement of gas molecules can be explained because gasses have size particles and exert attraction for other gas parti
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Answer:
Explanation:
r = Rate of flow of charge = 20000 C/s
t = Time taken = 100 μS
Charge is given by
The charge that flows between the ground and the cloud in this time is 2 C
Number of electrons is given by
The number of electrons is
Answer
given,
cooling fan revolution = 850 rev/min
fan turns before revolution = 1500 revolutions
θ = 1500 revolution
θ = 1500 x 2 x π
θ = 9424.78 rad
a) using equation of rotation
ω² = ω₀² + 2 α θ
ω = 0 because body comes to rest
0 = 89² + 2 x α x 9424.78
α = -0.42 rad/s²
b) time take for the fan to stop
ω = ω₀ + α t
0 = 89 - 0.42 t
t = 211.9 s