Answer:
Explanation:
Check attachment for solution
Given that, .
The initial gas pressure is
P1 = 3 MPa
The initial gas temperature
T1 = 300°C
The final gas pressure is
P2 = 80 KPa
Which are of two choices
1. Air with an isentropic expansion of 90% efficiency
2. Neon with an isentropic expansion of 80% efficiency
We want to know which will produce more work
Answer
given,
focal length of lens A = 5.77 cm
focal length of lens B= 27.9 cm
flies distance from mirror = 11.3 m
now,
Using lens formula
q =11.79 cm
image of lens A is object of lens B
distance of lens = 59.9 - 11.79 = 48.11
now, Again applying lens formula
q' =66.41 cm
hence, the image distance from the second lens is equal to q' =66.41 cm
A wooden log is displaced to a distance of 20m in 10 seconds by applying 500N effort . Calculate the workdone and power...
Solution,
displacement = 20 m
time = 10 sec
force = 500 N
work done = ?
power = ?
Now ,
work done = f × s
= 500 N × 20 m
= 10000 j
Now ,
~nightmare 5474~