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3 years ago

8

The vending of light when it changes media is called

1 answer:

andriy [413]3 years ago

6 0

I think you meant bending :).
Anyway when light enters a different medium the bending of light is refraction. Depending on the medium (i.e if it is denser or rarer) it will bend light closer or away from the normal ray (i.e a ray that hits the medium at 90 degrees does not bend).
Hope this helps :).

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Which of the following shows the units of angular motion?

Whitepunk [10]

Answer:

The units are <em>(</em><em>rad</em><em>/</em><em>s</em><em>^</em><em>2</em><em>)</em><em> </em>

4 0

3 years ago

If an electron moves in a circle of radius 21 cm perpendicular to a B field of 0.4 T, what are the speed of the electron and the

kodGreya [7K]

Answer:

a)

$v = 4.048 *10^6$ m/s

b)

Angular frequency = $1.92 * 10^7$

Explanation:

As we know

$v = \frac{qBr}{m}$

q is the charge on the electron = $3.2 * 10^{-19}$ C

B is the magnetic field in Tesla = $0.4$ T

r is the radius of the circle = $0.21$ m

mass of the electrons = $6.64 * 10^{-27}$ Kg

a)

Substituting the given values in above equation, we get -

$v = \frac{3.2 * 10^{-19}*0.4*0.21}{6.64 * 10^{-27}} \\v = 4.048 *10^6$ m/s

b)

Angular frequency =

$\frac{4.048 * 10^6 }{0.21} \\1.92 * 10^7$

8 0

2 years ago

A vector always consists of _____. <br> a force <br> mass<br> size<br> direction

dangina [55]

Vector it always consists to size(magnitude) and direction

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3 years ago

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what is the change in the force of gravity between any two bodies when mass of each body is double keeping the distance between

frez [133]

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2 years ago

A hiker walks due East for a distance of 6 km

solniwko [45]

Resultant displacement between the base camp and the cave will be 7.211 km

Displacement is a vector quantity that refers to "how far out of place an object is"; it is the object's overall change in position.

Her resultant displacement can be calculated using Pythagoras theorem

$H^{2} = P^{2} + B^{2}$

= $4^{2} + 6^{2}$

= 52

H = $\sqrt{52}$ = 7.211 km

Resultant displacement between the base camp and the cave will be 7.211 km

To learn more about displacement here :

brainly.com/question/13271165

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1 year ago