Answer:
123 J transfer into the gas
Explanation:
Here we know that 123 J work is done by the gas on its surrounding
So here gas is doing work against external forces
Now for cyclic process we know that

so from 1st law of thermodynamics we have


so work done is same as the heat supplied to the system
So correct answer is
123 J transfer into the gas
Answer:
Friction can be increased the longer two objects are rubbed together, since the longer they are rubbed is the more heat produced.
Explanation:
Because you are not using gas oil etc, in other words you are saving fossil fuels by walking instead of driving a car
also could I get brainliest plz
Answer:
the terminal velocity v_t= 202.96 m/s≅203 m/s
Explanation:
The expression for the terminal velocity

here, C_d is the drag coefficient for the cylinder is 1.15
The surface density of the air at 20°C is
ρ_surface = 1.2041 kg/m^3
the density of air at an altitude of 39000 m
ρ= 4.3/100×39000 = 0.05177 kg/m^3
now substitute these values in equation above
we get

v_t= 202.96 m/s≅203 m/s
the terminal velocity v_t= 202.96 m/s≅203 m/s
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