Answer:
A) T.
Explanation:
Kepler's third law states that the orbital period (T) of a satellite is related with the radius (R) and the mass of the object (M) it orbits:
So the orbital period is independent of the mass of the satellite, that means no matter the mass every satellite at a radius R around the earth have an orbital period A.
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:
Linear expansivity is the fractional increase in length of a specimen of a solid, per unit rise in temperature. If a specimen increases in length from l1 to l2 when its temperature is raised θ°, then the expansivity (α) is given by: l2 = l1(1 + αθ). This relationship assumes that α is independent of temperature. This is not, in general, the case and a more accurate relationship is: l2 = l1(1 + aθ + bθ2 + cθ3…), where a, b, and c are constants.
l2 = l1(1 + αθ).
l2 = l1(1 + aθ + bθ2 + cθ3…),
The correct answer among all the other choices is volts. This unit expresses the difference in energy. It is not watts or amps. Thank you for posting your question. I hope this answer helped you. Let me know if you need more help.
Upside down if its further than 1 focal point you have seen this with a spoon and enlarged right side up if closer than 1 focal point
