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JulsSmile [24]
3 years ago
14

E20E20: The word “virtual” refers to something that exists in effect but not in actual fact. How does this definition relate to

the virtual image you see of yourself in a plane mirror?
Physics
2 answers:
Lubov Fominskaja [6]3 years ago
5 0

The correct answer (sample response) is:

The image seems to be behind the mirror, but nothing is really there.

Include the following in your response:

The image appears to be behind the mirror.

If someone looks behind the mirror, there is no image there.

|Huntrw6|

Alika [10]3 years ago
3 0

Answer:

A plane mirror forms a virtual, erect, same size and laterally inverted image. Virtual means that the image is not real and cannot be obtained on screen. It means the rays appear to meet behind the mirror but when you will actually go behind, you will find nothing. A virtual image is always erect.

A real image is always inverted. It can be obtained on the screen. Rays actually meet at a point.

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Answer: 2.67 m/s

Explanation:

Given

Mass of block A  is m_a=2\ kg

mass of block B is m_b=3\ kg

The initial velocity of block A u_a=5\ m/s

the initial velocity of block B is u_b=0

After collision velocity of block A is v_a=1\ m/s

Conserving momentum

m_au_a+m_bu_b=m_av_a+m_bv_b\\\\2\times 5+3\times0=2\times 1+3\times v_b\\\\v_b=\dfrac{8}{3}=2.67\ m/s

The momentum of block A after the collision is P_a=2\times 1=2\ kg.m/s

Therefore, there is no change in sign.

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3 years ago
Convertir:<br> A. 3Km a m<br> B. 250 ma Km<br> C. 1000Cm a m<br> D. 10000 mm a Cm
Katen [24]

Answer:

A. 3,000,000 m

B. 0.25 km

C. 10 m

D. 1,000 cm

Explanation:

no hablo español, así que solo ingrese esto en el traductor de G*ogle

A. One kilometer equals 1000 meters, so

3,000*1,000 = 3,000,000 m

B. One meter equals 0.001 kilometer, so

250*0.001 = 0.25 km

C. One centimeter equals 0.01 meter

1,000*0.01 = 10 m

D. One milimeter equals 0.1 centimer, so

10,000*0.1 = 1,000

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What types of materials can make up sediments?
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3 years ago
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