384,400 in scientific notation can be written as 3.844×10^5
Formula to calculate speed:
Speed=Distance/Time
Distance: 24 m
Time: 3 sec
24/3=8
So the correct answer is 8 m/s
If we consider Boyles law for gases, it states the following equation,
PV/T =k
where k is a constant
P-pressure, T- temperature and V -volume
the volume is constant at both situations as its a rigid tank as mentioned in the questions.
Therefore we consider Volume to be constant , then equation is
P/T = kV
kV = c (new constant)
P/T = c
P = cT
Therefore pressure is inversely proportional to temperature, whatever change in pressure would cause the same kind of change in temperature as well.
therefore when T decreases, P also decreases.
Answer is B
Shampoo has a higher density
