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2 years ago

What force causes galaxies to move away from one another?.

Physics

1 answer:

nadezda [96]2 years ago

5 0

Answer:

energy left over from the big bang

Explanation:

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Why do you feel warm when you are standing away from a camp fire

olya-2409 [2.1K]

Because the heat of the fire diffuses into the atmosphere and then we absorb it into our body

5 0

3 years ago

A person walks into a room that has, on opposite walls, two plane mirrors producing multiple images. Find the distances from the

Lapatulllka [165]

Answer:13.2,41.4,82.8 ft

Explanation:

Given Person is 6.60 ft from the left hand side mirror

Since the focal length of plane mirror is infinity therefore image and object are equidistant from mirror

Distance of first image on left mirror is

$d_1=6.6+6.6=13.2 ft$

i.e. image is 13.2 ft away from object

Second image

Now the right mirror forms the image of object at distance of 14.1 ft right from right mirror so its image is formed in left mirror at a distance of 34.8 from left mirror

so image distance from person is

$d_2=34.8+6.6=41.4 ft$

Third image now form image of second image is formed on right mirror at a distance of 55.5 right from right mirror

and its mirror image is formed on left mirror at a distance of 76.2 left

from left mirror

$d_3=76.2+6.6=82.8 ft$

8 0

3 years ago

PLEASE HELP ASAP!!! NO LINKS! Which type of wave does the illustration depict?

Xelga [282]

Answer:

Transverse wave

Explanation:

The wave is moving forwards from the hand to the point of attachment

3 0

3 years ago

Flag question

anastassius [24]

Answer:

P = density (p) * g * h

P = 1000 kg/m^3 * 9.8 m/s^2 * 40 m = 392,000 N/m^2

since kg m / s^2 = Newtons

The average pressure is 1/2 (pressure at 0m + pressure 80 m) for liquid of uniform density

3 0

3 years ago

As 390-g of hot milk cools in a mug, it transfers 30,000 J of heat to the environment.

stiks02 [169]

Q = m.s.Δt
Δt = Q /m.s
Here, Q = 30,000 J
m = 390 g
s = 3.9 J/g C

Substitute their values,
= 30,000 / 390 *3.9
= 30,000 / 1521
= -20 C (approx.) [-ve sign 'cause temperature is decreasing ]

In short, Your Answer would be Option D

Hope this helps!

7 0

3 years ago

Read 2 more answers