B. a solar storm that moves across the sun's surface
Answer:
θ = ω0 t + 1/2 ω t^2 = 1/2 α t^2 since it starts from rest
α = (15000 / 60) / 240 = 250 / 240 = 1.04 rev/sec^2
Note that α is in rev/sec^2
T(otal) = 1/2 * 1.04 * 240^2 = 30,000 revolutions
Check:
Average RPM = (15000/2) = 7500 rev/min = 125 / sec
125 / sec * 240 sec = 30,000 rev
Cumulus? They are fluffy clouds that have flat bottoms. Is this what you need?
'ml' and 'cm³' are exactly the same volume, and they're both metric units.
If you're asking about volume measurements in the USA, then
fasten your seat belt. It's going to be a bumpy ride:
-- 29.5735295625 ml makes 1 US fluid ounce
-- 8 US fluid ounces makes 1 US cup
-- 2 US cups makes 1 US pint (16 US fluid ounces)
-- 2 US pints makes 1 US quart (32 US fluid ounces, 4 US cups)
-- 4 US quarts makes 1 US gallon
(8 US pints, 16 US cups, 128 US fluid ounces, 231 cubic inches)
Answer : The number of molecules of A needed to make 5000 molecules of AB will be, 5000
Explanation :
Law of conservation of mass : It states that mass can neither be created nor be destroyed but it can only be transformed from one form to another form.
The given balanced chemical reaction is,
As per question, molecule B is an excess reagent because it had enough molecule to make 5000 molecules of AB. So, molecule A is limiting reagent.
From the balanced reaction, we conclude that
As, 1 molecule of AB produced from 1 molecule of A
So, 5000 molecule of AB produced from 5000 molecule of A
Hence, the number of molecules of A needed to make 5000 molecules of AB will be, 5000