Answer
Polarization is a method of restricting different plane of transverse waves into the required plane.
Polarization process is done with the help of Polaroids. Polaroids are kept at different angles, these angles are selected according to the wave requirement. Polaroids allows only waves which are aligned to it.
so, this phenomenon is the same in case of polarizing sunglasses as it restricts the unwanted sun waves to pass through it.
Answer:
a) 39.37 m
b) 26.25 m
Explanation:
Given
speed of the roller coaster, v = 100 km/h = 100 * (1000/3600) m/s = 27.78 m/s
Using the law of conservation of energy.
Potential Energy = Kinetic Energy
mgh = 1/2mv²
gh = 1/2v²
h = v²/2g
h = 27.78² / 2 * 9.8
h = 771.7284 / 19.6
h = 39.37 m
Also,
kmg - mg = mv²/p
kg - g = v²/p
p = v²/g(k - 1)
p = 27.78² / 9.8(4 - 1)
p = 771.7284 / 29.4
p = 26.25 m
Therefore, the height of the roller coaster is 39.37 m and the radius of curvature required is 26.25 m
Answer:
For him being such a fat bear, it would have taken alot of work
Explanation:
Answer:
Part a)
Part b)
Part c)
Explanation:
Part a)
As we know that it starts from rest and moves on runway by total distance 165 m
so we will have
now we have
Part b)
Now for take off time we will have
Part c)
Answer:
Rectilinear propagation describes the tendency of electromagnetic waves to travel in a straight line. Light does not deviate when travelling through a homogeneous medium, which has the same refractive index throughout; otherwise, light suffers refraction.
