Answer:
Work done is 93.75J
Explanation:
Given mass, m = 30kg; Time = 5 seconds; force = 15N; u= 0
Acceleration, a = F/m ⇒ 15/30
⇒ 0.5ms
Displacement , s= ut+1/2at²
⇒ 0 +1/2 (0.5*5*5)
⇒ 0 + 1/2(0.5*25)
⇒ 0 + 1/2(12.5)
⇒ 0 + 6.25
⇒ 6.25m
work done = Fs=15*6.25= 93.75 J
Answer:
i assume the system is in equilibrium
Explanation:
(W_p-T)(2)+W_b(2.5)= T(sin 45 degrees)(5)
T(((sin 45 degrees)(5)) + 2) = (W_p)(2) + W_b(2.5)= T(5.5355)
Answer:
may be egg shaped or may be spiral shaped has no recognizable shape has no new stars being formed has almost no gas or dust between stars.
Initially there were 10 bulbs of 60 Watt power
So total power of all bulbs = 60 * 10 = 600 W
now each bulb used for 4 hours daily
so total energy consumed daily
now we have total power consumed in 1 year
cost of electricity = 10 cents/ kWh
so total cost of energy for one year
Now if all 60 Watt bulbs are replaced by 30 Watt bulbs
So total power of all bulbs = 30 * 10 = 300 W
now each bulb used for 4 hours daily
so total energy consumed daily
now we have total power consumed in 1 year
cost of electricity = 10 cents/ kWh
so total cost of energy for one year
total money saved in 1 year
Answer:
The pressure is
Explanation:
From the question we are told that
The initial pressure is
The temperature is
Let the first volume be Then the final volume will be
Generally for a diatomic gas
Here r is the radius of the molecules which is mathematically represented as
Where are the molar specific heat of a gas at constant pressure and the molar specific heat of a gas at constant volume with values
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