<span>Answer:
We have pressure from the weight of the piston + atmospheric pressure acting on the gas
pressure from the piston...
P = F / area = mass x acceleration due to gravity / area
P = (24 kg x 9.80 m/s²) / (90 cm² x (1m/100cm)²) = 26133 N/m² = 2.61x10^4 Pa = 26.1 kPa
total pressure acting on the gas = 26+85 kPa = 111 kPa
then.. via clausius clapeyron equation..
ln(P1 / P2) = (dHvap / R) x (1 / T2 - 1 / T1)
and if I pick say.. the normal boiling point of water for P2, T2.. then...
P1 = 111 kPa
P2 = 101.325 kPa
dHvap = 40680 J/mole
R = 8.314 J/moleK
T2 = 373.15 K
T1 = ??
---> T1 = 102.46°</span>
Drag is passive, therefore it does not act on gravity. Drag is a mechanical resistance to motion. If the motion in question was induced by gravity drag it can impede that motion, but has no effect on the gravity.
hope this helps!
Answer 4,520 feet
Explanation
The light and the sound were produced at the same time but sound took long to reach since is speed is much lower than the speed of light.
Speed is the rate of change of distance. So;
Distance = speed × time = 1130 × 4 = 4,520 feet.
A.cooler and hotter rock rise but do not sink.
B.hotter and cooler rock sink but do not rise.
C.hotter rock rises and cooler rock sinks.
D.cooler rock rises and hotter rock sinks.
hotter rock rises and cooler rock sinks.
Answer: Option C.
<u>Explanation:</u>
The process that happens inside the surface of earth makes the rocks inside the surface to either expand or shrink in size because of the presence of heat inside the surface.
Heat rises and as the warmer rock gets further away from the super heated center of the Earth it begins to cool off and starts to sink back toward the super heated center of the Earth where it is reheated and the whole process starts over again. That is what a convection current is.
