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rewona [7]
4 years ago
9

HELPPPP MEEE!!! 15 POINTS

Physics
1 answer:
GalinKa [24]4 years ago
4 0

Answer:

I think it is eyeglasses

Explanation:

I think this because the glasses usually reflect the same thing sometimes and the light passes through really easy

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Is an aquarium a system ?
sweet [91]

No

Explanation:Brooo it does not contribute to the eco system

6 0
3 years ago
PLEASE HELP AS SOON AS POSSIBLE!!!
Brums [2.3K]

Answer:

h = 81.63 m

Explanation:

Given that,

The speed of the car, v = 40 m/s

We need to find the height when the car comes to rest. We can use the conservation of energy to find it i.e.

mgh=\dfrac{1}{2}mv^2\\\\h=\dfrac{v^2}{2g}\\\\h=\dfrac{(40)^2}{2\times 9.8}\\\\h=81.63\ m

So, it will reach to a height of 81.63 m and comes to rest.

7 0
3 years ago
10 centimeter represents 1 meter. If a class room is 5 centimeters by 7 centimeters. What are the actual dimensions of the class
creativ13 [48]

Answer:

<em>The actual dimensions of the classroom are 50 cm x 70 cm</em>

Explanation:

<u>Scaling </u>

When we need to represent real-world dimensions into small spaces, we use scaling. Distance scaling tells us what is the equivalence between the real units and the scaled units. In this case, we are told that 10 cm is equivalent to 1 meter. As 1 meter is 100 cm, it means that the scale is 100/10=10. Thus, each centimeter in the paper is equivalent to 10 cm in the real distance.

The classroom is 5 cm x 7 centimeters. Scaling back to the real values, the classroom has measures of 50 cm x 70 cm.

8 0
3 years ago
50 POINTS!!!
natulia [17]

Answer: <u>In a divergent plate boundary</u>, seafloor spreading taking place. It leads to the formation of oceans as new materials are added here along the mid-oceanic ridge. There occur volcanism and shallow-focus earthquakes.

<u>In a convergent plate boundary</u>, two plates collide to form high mountain belts and also volcanic eruptions take place. There occur long chains of volcanic as well as island arcs, in association with deep-focus earthquakes.

<u>In a transform plate boundary</u>, two plates slide past each other, conserving the plates. Shallow-focus earthquakes are generated here.

The earth has experienced various geological processes, such as weathering and erosion of rocks, earthquakes, volcanic eruptions, mass extinction events, plate tectonic movements and many more. These continuous processes have configured the present shape of the earth's surface.

For example, the breaking up of the supercontinent Pangea divided into Laurasia and Gondwanaland and subsequently formed the present scenario. This separation of continents has taken place due to the convection current that generates in the mantle.

5 0
3 years ago
Read 2 more answers
In order of fastest to slowest, how do sound waves travel through different mediums?
Nikitich [7]
Gases, liquids, solids
7 0
3 years ago
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