Answer:
★The second law of refraction
The ratio of sine of angle of incidence to the sine of angle of refraction is a constant for a light of given colour and for a given pair of media. This law is also called Snell's law of refraction. If 'i' is the angle of incidence and 'r' is the angle of refraction then, Sin i/Sin r = constant
This constant value is called the refractive index of the second medium with respect to the first.
Answer:
<h2>0.17 m/s²</h2>
Explanation:
The acceleration of an object given it's mass and the force acting on it can be found by using the formula
f is the force
m is the mass
From the question we have
We have the final answer as
<h3>0.17 m/s²</h3>
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Answer:
4.3A
Explanation:
V=IR
120=I×28
I=120/28
=4.3
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The speed and acceleration of the stone is 15.7 m/s and 31.4 .
<h3>What is acceleration?</h3>
Acceleration is the rate at which an object's velocity with respect to time changes. They are vector quantities, accelerations. The direction of the net force acting on an object determines the direction of its acceleration.
<h3>Calculation of the speed of stone lodged in the tread of the tire:</h3>
Given, radius of tire (r) = 0.500 m
<h3 />
= 15.7 m/s
<h3>Calculation of it's acceleration:</h3>
= 31.4 inward
Hence, the speed and acceleration of the stone is 15.7 m/s and 31.4
Learn more about velocity here:
brainly.com/question/18084516
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