Given :
Change in internal energy is, ΔE = 10 J.
Heat transferred to the system is, Q = 10 J.
To Find :
The work done by the system.
Solution :
We know, by 1st law of thermodynamics :
ΔE = W + Q
W = ΔE - Q
W = 10 - 10 J
W = 0 J
Therefore, work done by the system is 0 J.
Answer:
Explanation:
Given that the airplane starts from the rest (this is initial velocity equals to zero) and accelerates at a constant rate, position can be described like this: where x is the position, t is the time a is the acceleration and is initial velocity. In this way acceleration can be found. .
Now we are able to found velocity at any time with the formula:
At some time during her drive she backed up with a substantial negative. ( backwards) acceleration. Since the pocket book is not physically connected to the seat it is free to move. Upon rapid negative acceleration the pocket book remains in its position while the car accelerates backwards away from it. this demonstrates Newtons 1st law of motion. The first law is the law of inertia. Which states, an object at rest. ( pocketbook) will remain at rest and an object in motion will continue in motion at constant velocity, unless acted upon by some outside force to change its motion.
"An object weighs about two times as much on Jupiter as on Neptune." Hope this helps :)
Answer:
The voltage of the generator is 7.27 kV.
Explanation:
Given that,
Output of generator = 440 V
Current = 20 A
Resistance = 0.60 Ω
Power loss =0.010%
We need to calculate the total power of the generator
Using formula of power
Where, V = voltage
I = current
Put the value into the formula
Th power lost on the transmission lines
The current passing through the transmission line
We need to calculate the voltage of the generator
Using formula of voltage
Put the value into the formula
Hence, The voltage of the generator is 7.27 kV.