Um Kinetic, mechanical, potential idk
The rider is riding the nick so kinetic then mechanical making the bike move then potential stopping the bike
Answer:
C 2000v its obviously ans because if o is 1000 2 vo is 2000v
a) Density at 100 degrees: 
Explanation:
The density of mercury at 0 degrees is 
Let's take 1 kg of mercury. Its volume at 0 degrees is

The formula to calculate the volumetric expansion of the mercury is:

where
is the cubic expansivity of mercury
V is the initial volume
is the increase in temperature
In this part of the problem, 
So, the expansion is

So, the new density is

b) Density at 22 degrees: 
We can apply the same formula we used before, the only difference here is that the increase in temperature is

And the volumetric expansion is

So, the new density is

It is bracking down because of all the pollutoin
Explanation:
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