Answer:
Workdone during the process = 130kJ
Explanation:
Workdone by an expanding gas which is also called pressure-volume work, is defined as the pressure exerted by the gas molecules on the walls of the containing vessel. If work done by an expanding gas is the energy transferred to its surroundings i.e If volume increases, workdone is negative(loses energy).
In an isothermal process(constant Temperature of 300K, we use boyles law:
P1V1 = P2V2
V2 = (150 * 0.2)/800
= 0.0375 m3
W = -P(V2 - V1)
= 800*(0.0375 - 0.200)
= 130kJ
Answer:
1.737 kJ
Explanation:
Thinking process:
Step 1
Data:
Area of the shaft = 0.8 cm²
Combined mass of shaft and piston = (24.5 + 0.5) kg
= 25 kg
Piston diameter = 0.1 m
External atmospheric pressure = 1 bar = 101.3 kPa
Pressure inside the gas cylinder = 3 bar = 3 × 101.3 kPa
g = 9.81 m/s²
Step 2
Draw a free body diagram
Step 3: calculations
area of the piston = 0.0314 m²
Change in the elevation of the piston, 
z = 
= 
= 0.82 m
Next, we evaluate the work done by the shaft:

= (1668) ( 0.082)
= 1. 37 kJ
Net area for work done = A (piston) - Area of shaft
= 
= 77.7 cm²
= 0.007774 m²
Work done in overcoming atmospheric pressure:
Wₐ = PAZ
=101.3 kPa * 0.007774 * 0.82
= 0.637 kJ
total work = work done by shaft + work to overcome atmospheric pressure = 0.367 + 1.37
= 1.737 kJ Ans
Answer:
The correct option is B.
Explanation:
"An ideal randomized controlled experiment " best describes the statement mentioned in the question.
Answer:
(a) R₁ / (R₁ +
)
(b) -
/ (R₁ +
)
Explanation:
(a)
i - Using voltage division rule =
v₀ = v₁ [
/ (R₁+
)]
The sensitivity is
ii -
= dv₀/d
*
/v₀
= R₁ / (R₁ +
)
(b)
i - Using voltage divisor rule = v₀ = v₁ [
/ (R₁+
)]
ii -
= dv₀/d
*
/v₀
= -
/ (R₁ +
)
Answer:
See the attached file for detailed code.
Explanation: