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7nadin3 [17]
4 years ago
7

Compared to a virtual image, a real image

Physics
1 answer:
Rom4ik [11]4 years ago
5 0

Compared to a virtual image, a real image can be observed on a screen.

Explanation

When a beam of light meets at a specific point after the reflection from the mirror, the image formed at the point is said to be a real image.

Real images are generally inverted.

When a beam of light seems to appear to meet at a certain point after the reflection from the mirror, the image formed at the point is said to be a virtual image.

Virtual images are generally erect.

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A ball with a mass of 170 g which contains 3.80×108 excess electrons is dropped into a vertical shaft with a height of 145 m . A
yaroslaw [1]

Answer:

A. F=6.65*10^{-10}N

B. south - north

Explanation:

A) We use the Lorentz force

F = qv X B

|F| = qvB

to calculate the magnitude of the force we need the speed of the of the ball.

v_{f}^{2}=v_{0}^{2}+2gy\\v_{f}=\sqrt{0+2(9.8\frac{m}{s^{2}})(145m)}=53.31\frac{m}{s}

and by replacing in the formula for the magnitude of the force we have (taking into account the excess of electrons)

F=(3.8*10^{8})(1.602*10^{-19}C)(53.31\frac{m}{s})(0.205T)=6.65*10^{-10}N

B)

b.  south - north (by the rigth hand rule)

I hope this is usefull for you

regards

8 0
3 years ago
If a car's mass is 439 kg, what is its weight on earth?
trasher [3.6K]
The correct answer is B.
8 0
3 years ago
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Oxana [17]
Terrorist attacks on the United States is the answer.

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7 0
4 years ago
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Nuetrik [128]

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