2 years ago

Orbit around hub and arms of spirals ( with name )

Physics

1 answer:

const2013 [10]2 years ago

6 0

the answer is the Spiral Galaxy

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A student walks a distance of 3 km in 20 minutes calculate his average speed

serg [7]

Answer:

His average speed is 0.15 kilometer per minute or 2.5 meters per second.

Explanation:

average speed = distance/time

x = 3 km/20 minutes

x = 0.15

—

x = 3000 m/1200 s

x = 2.5

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3 years ago

The treasure map gives the following directions to the buried treasure

iren2701 [21]

Answer:

North

South

East

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Explanation:

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2 years ago

An object is placed 50.0 cm in front of a convex mirror. where can be the image located if the focal length is 40 cm from the mi

sergiy2304 [10]

Answer:

Image will form at distance 22.22 cm behind the mirror

Explanation:

As we know that the mirror formula is given as

$\frac{1}{d_i} + \frac{1}{d_o} = \frac{1}{f}$

now we know that

object distance from mirror is

$d_o = -50 cm$

Focal length of the mirror is given as

$f = 40 cm$

now we have

$\frac{1}{-50} + \frac{1}{d_i} = \frac{1}{40}$

$\frac{1}{d_i} = \frac{1}{50} + \frac{1}{40}$

$d_i = 22.22 cm$

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3 years ago

Which principle(s) of the cell<br> theory shows that all organisms<br> are somehow similar?

Stolb23 [73]

Explanation:

The unified cell theory states that: all living things are composed of one or more cells; the cell is the basic unit of life; and new cells arise from existing cells.

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3 years ago

Thylakoids contain chlorophyl that absorb solar energy

steposvetlana [31]

Answer:

True

True statement:

Because pigment molecules absorb solar energy and thylakoids are pigment molecules

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