As stated in the statement, we will apply energy conservation to solve this problem.
From this concept we know that the kinetic energy gained is equivalent to the potential energy lost and vice versa. Mathematically said equilibrium can be expressed as
Where,
m = mass
= initial and final velocity
g = Gravity
h = height
As the mass is tHe same and the final height is zero we have that the expression is now:
Answer:
4
Explanation:
= Threshold intensity for woman
I = Intensity of sound for man
= Intensity level of sound = 6 dB
Intensity level of sound is given by
The ratio is 4
Answer and Explanation:
The clothing after spinning in the dryer cling together. This is because in the dryer they are rubbed against each other and due to this rubbing, electrons are transferred from one to the other clothes and acquire charge as a result of charging by friction thus producing static electricity.
As the material of the clothes in the dryer is different, clinging will be more.
The sticking of these clothes together is known as Static cling.
In case, the clothing are of same material, the static electricity produced as a result of frictional charging would be less and hence less static cling would occur.
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