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2 years ago

I Require Help on this Physics Question, I made an attempt at answering but I just have no idea.

Physics

1 answer:

Mashutka [201]2 years ago

5 0

Answer:

It traveled 24 centimeters

Explanation:

The displacement of the object is equal to the area under the velocity vs time graph.

We can split this graph into two shapes, a triangle and a rectangle. So the total area is:

A = ½bh + wh

A = ½ (4 s − 0 s) (4 cm/s) + (8 s − 4 s) (4 cm/s)

A = 8 cm + 16 cm

A = 24 cm

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A plane electromagnetic wave travels northward. At one instant, its electric field has a magnitude of 9.6 V/m and points eastwar

lara31 [8.8K]

Answer:

The values is $B = 3.2 *10^{-8} \ T$

The direction is out of the plane

Explanation:

From the question we are told that

The magnitude of the electric field is $E = 9.6 \ V/m$

The magnitude of the magnetic field is mathematically represented as

$B = \frac{E}{c}$

where c is the speed of light with value

$B = \frac{ 9.6}{3.0 *10^{8}}$

$B = 3.2 *10^{-8} \ T$

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3 years ago

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2 years ago

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Serjik [45]

Answer:

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Explanation:

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Anti-reflective coatings on lenses use thin-film interference to eliminate the reflection of a particular color. Suppose a glass

Sidana [21]

Answer with Explanation:

We are given that

$n_g=1.55$

$n_f=1.35$

$\lambda=521 nm=521\times 10^{-9} m$

$1 nm=10^{-9} m$

a.We have to find the expression for the minimum thickness the film can have ,t.

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$2nt=(m+\frac{1}{2})\lambda$

$t=\frac{(m+\frac{1}{2})\lambda}{2n}$

For minimum thickness m=0

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3 years ago