Answer:
C) 200 m/s
Explanation:
The sound travels a total distance of 360 m in 0.03 minutes.
v = (360 m) / (0.03 min × 60 s/min)
v = 200 m/s
Everything in the universe that is not a star reflects light from Stars. Otherwise you can't see it.
Answer:
UV light
climate
hydrofluorocarbons or HFCs
pollutants
heat
As sunlight falls on Earth's surface, it heats up the surface. Infrared light is emitted from the surface and is absorbed in the atmosphere, where it is converted to heat. This heat remains trapped in the atmosphere, causing the temperature near the surface to increase.
Explanation:
these are all correct
Answer : The temperature of the gas is, 43.4 K
Explanation :
The expression used for work done will be,
where,
w = work done = 200 J
n = number of moles of gas = 0.40 mol
R = gas constant = 8.314 J/mole K
T = temperature of gas = ?
= initial volume of gas = X
= final volume of gas = 
Now put all the given values in the above formula, we get :
Thus, the temperature of the gas is, 43.4 K
Answer:
3,200 grams
Explanation:
recall that a hectogram = 100 grams
therefore
32 hectograms = 32 x 100 = 3,200 grams
