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2 years ago

A plane mirror forms a virtual image. give reasons

Physics

1 answer:

Delicious77 [7]2 years ago

7 0

Explanation:

So ,plane mirror forms a virtual image.

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Calculate the magnitude of the electric field at one corner of a square 2.42 m on a side if the other three corners are occupied

Karolina [17]

Ans:

12500 N/C

Explanation:

Side of square, a = 2.42 m

q = 4.25 x 10^-6 C

The formula for the electric field is given by

$E = \frac{Kq}{r^2}$

where, K be the constant = 9 x 10^9 Nm^2/c^2 and r be the distance between the two charges

According to the diagram

BD = $\sqrt{2}\times a$

where, a be the side of the square

So, Electric field at B due to charge at A

$E_{A}=\frac{Kq}{a^2}$

$E_{A}=\frac{9\times10^{9}\times 4.25 \times 10^{-6}}{2.42^2}$

EA = 6531.32 N/C

Electric field at B due to charge at C

$E_{C}=\frac{Kq}{a^2}$

$E_{C}=\frac{9\times10^{9}\times 4.25 \times 10^{-6}}{2.42^2}$

Ec = 6531.32 N/C

Electric field at B due to charge at D

$E_{D}=\frac{Kq}{2a^2}$

$E_{D}=\frac{9\times10^{9}\times 4.25 \times 10^{-6}}{2\times 2.42^2}$

ED = 3265.66 N/C

Now resolve the components along X axis and Y axis

Ex = EA + ED Cos 45 = 6531.32 + 3265.66 x 0.707 = 8840.5 N/C

Ey = Ec + ED Sin 45 = 6531.32 + 3265.66 x 0.707 = 8840.5 N/C

The resultant electric field at B is given by

$E=\sqrt{E_{x}^{2}+E_{y}^{2}}$

$E=\sqrt{8840.5^{2}+8840.5^{2}}$

E = 12500 N/C

Explanation:

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4 years ago

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You are baking a cake and put the ingredients into a mixer to make the batter. What type of energy transfer does a mixer perform

zysi [14]

Answer:

B. Electrical to kinetic

Explanation

Since the mixer uses electricity to function, which in turn spins the blades, it converts electricity into kinetic energy.

HOPE IT HELPS U...

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4 years ago

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Why do faults often occur along plate boundaries?

Slav-nsk [51]

Earthquakes can also occur far from the edges of plates, along faults. Faults<span> are cracks in the earth where sections of a plate (or two plates) are moving in different directions. Faults are caused by all that bumping and sliding the plates do. They are more common near the edges of the plates.</span>

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3 years ago

What creates linear and rotary motion

Phantasy [73]

Answer:

A slider Crank Mechanism creates linear and rotary motion

Explanation:

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4 years ago

What is 74000000 in scientific notation

bekas [8.4K]

It is 7.4x(10 to the power of 7)

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3 years ago

A plane mirror forms a virtual image. give reasons​

A plane mirror forms a virtual image. give reasons