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3 years ago

What is cocanve mirror?

Physics

2 answers:

pochemuha3 years ago

8 0

Answer:

A mirror that has a reflecting surface that is recessed inward is called concave mirror

professor190 [17]3 years ago

4 0

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Refer to the pics for the question please.

frosja888 [35]

Overall displacement of the object = 30 m

Average velocity = 0.6 m/s

Instantaneous velocity = 0.2 m/s

The correct graph is graph C.

<h3>What is displacement?</h3>

Displacement is the distance travelled by an object in a specified direction.

Displacement is a vector quantity.

The overall displacement of the object = 40 m - 10 m

Overall displacement of the object = 30 m

Average velocity = displacement/time

Average velocity = 30 m/ 50 s

Average velocity = 0.6 m/s

Instantaneous velocity at t = 10.0 s

Instantaneous velocity = (15 - 10)/10

Instantaneous velocity = 0.2 m/s

The correct graph is graph C.

In conclusion, velocity is the change in displacement with time..

Learn more velocity at: brainly.com/question/4931057

#SPJ1

3 0

2 years ago

1. how to find out the elecronic structure of<br> i. lithium<br> ii. potassium<br> iii. sodium

Setler [38]

Answer:

See explanation

Explanation:

To find out the electronic structure of each element, you must know the number of electrons it contains.

If you find that out(the number of electrons in the neutral atom of an element is the same as its atomic number). Then you arrange those electrons in such a way that the first shell has only two electrons and subsequent shells have eight electrons.

Look up the groups to which the elements belong in the periodic table All the elements are in group 1 so the last shell must have only one electron.

7 0

3 years ago

How long does it take long a light from the sun to reach the earth if it travels a distance of 1.5 × 10^11m? (velocity of light

mojhsa [17]

Answer:

Therefore, light travelling at 3.0x10^8 meters per second takes 500 seconds (8 minutes, 20 seconds) to reach the Earth, which is 1.5x10^11 meters away from the sun

Explanation:

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3 years ago

What is a creative name of a roller coaster about the solar system

GenaCL600 [577]

Solar roller is a cool name

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3 years ago

What happens to the shift in wavelength of the x rays if we increase the mass of the target?

andrew-mc [135]

To solve this problem it is necessary to express the term of the wavelength of continuous x-rays according to the Planck constant, the speed of light, the charge of the electron and the voltage. This definition is expressed mathematically as

$\lambda = \frac{hc}{eV}$

Here,

h is Planck's constant

c is speed of light

e is charge of electron

V is the potential to which the electrons are accelerated.

From this definition we can see that the wavelength is independent of the mass of the target material. Therefore the wavelength will remain the same.

5 0

3 years ago

What is cocanve mirror?​

What is cocanve mirror?