Answer:
Explanation:
500 MW = 500 X 10⁶ J / s
If R be the rate of heat supplied and 35 % is the efficiency of conversion
R x .35 = 500 X 10⁶
R = 500 X 10⁶ / .35
= 1428.57 x 10⁶ J / s
b )
Rate of heat going waste
= .65 x 1428.57 x 10⁶
= 928 .57 x 10⁶ J / s
c )
Heat content of coal = 30 x 10⁶ J /kg
1428.57 x 10⁶ J of heat will come from
= 1428.57 x 10⁶ J / 30 x 10⁶ J /kg
= 47.62 kg per second
= 47.62 x 24 x 60 x 60 = 4114368 kg in one day
= 4114368 / 907.185 ton per day
= 4535.31 ton per day
d ) Fuel consumption rate will decrease by 12.5 % if thermal efficiency is increased to 40 % .
Answer:
Antivirus software is a software which is used to prevent scan detect and delete viruses from a computer.
A magnifying glass is a simple microscope
Answer:
Explanation:
The energy lost by the handle in lowering is equal to the energy gained by the car in raising the height.
As the mass of car is much more as compared to the jack, so the height raised by the car is very small as compared to the handle of jack.
Im thinking D. It is 100 times larger
