A student is given a red and a blue liquid. The two samples of liquids are heated in identical beakers over identical Bunsen bur
2 answers:
Explanation :
It is given that a student is given a red and a blue liquid. The two samples of liquids are heated in identical beakers over identical Bunsen burners.
It is observed that the red liquid shows a dramatically faster increase in temperature.
This observation can be explained in terms of specific heat. It is defined as the heat required to raise the temperature.
We know that the specific heat of any liquid is given by :
Where c is the specific heat.
m is the mass of the substance.
Q is the amount of heat.
is the change in temperature.
So, it is clear that the specific heat capacity is inversely proportional to the temperature.
The better explanation for this can be the specific heat of the red liquid is less because it drastically increases in temperature.
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Time = 0.5 s
Acceleration = 10 m/s²
(I). We need to calculate the speed of apple
Using equation of motion
Where, v = speed
u = initial speed
a = acceleration
t = time
Put the value into the formula
(III). We need to calculate the height of the branch of the tree from the ground
Using equation of motion
Put the value into the formula
(II). We need to calculate the average velocity during 0.5 sec
Using formula of average velocity
Where, = final position
= initial position
Put the value into the formula
Hence, (I). The speed of apple is 5 m/s.
(II). The average velocity during 0.5 sec is 2.5 m/s
(III). The height of the branch of the tree from the ground is 1.25 m.