A cylindrical flask is fitted with an airtight piston that is free to slide up and down. A mass rests on the top of the piston.
1 answer:
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Answer:
The wife have to sit at 0.46 L from the middle point of the seesaw.
Explanation:
We need to make a sketch of the seesaw and the loads acting over it.
And by the studying of the Newton's law we can find the equation useful to find the distance of the mother sitting on the seesaw with respect to the center ot the pivot point.
A logical intuition will give us the idea that the mother will be on the side of her son to make the balance.
The maximum momentum with respect to the pivot point (0) will be:
Where L/2 is the half of the distance of the seesaw
Therefore the other loads ( mom + son) must be create a momentum equal to the maximum momentum.
Answer:
Total charge flow through the cooker is 21600 C
Explanation:
As we know that the current flow through the cooker is given by Ohm's law
here it is given as
now the charge flow through it is given as
total time is t = 8 hours
Answer:
Difference in the angle of refraction = 0.3°
41.04° is the minimum angle of incidence.
Explanation:
Angle of incidence = 38.0°
For yellow light :
Using Snell's law as:
Where,
Θ₁ is the angle of incidence
Θ₂ is the angle of refraction
n₁ is the refractive index for yellow light which is 1.523
n₂ is the refractive index of air which is 1
So,
Angle of refraction for yellow light = sin⁻¹ 0.9377 = 69.67°.
For green light :
Using Snell's law as:
Where,
Θ₁ is the angle of incidence
Θ₂ is the angle of refraction
n₁ is the refractive index for green light which is 1.526
n₂ is the refractive index of air which is 1
So,
Angle of refraction for green light = sin⁻¹ 0.9395 = 69.97°.
The difference in the angle of refraction = 69.97° - 69.67° = 0.3°
Calculation of the critical angle for the yellow light for the total internal reflection to occur :
The formula for the critical angle is:
Where,
is the critical angle
is the refractive index of the refractive medium.
is the refractive index of the incident medium.
n₁ is the refractive index for yellow light which is 1.523 (incident medium)
n₂ is the refractive index of air which is 1 (refractive medium)
Applying in the formula as:
The critical angle is = sin⁻¹ 0.6566 = 41.04°