Oceans receive freshwater from precipitation and rivers. Yet ocean levels do not change very much from these actions. Why are ocean levels not greatly affected?

Answers

Answer 1

Answer: Ocean levels are not greatly affected because when water is deposited or received from the ocean, at the same time water is being evaporated from the ocean to condense in the clouds and them form into precipitation.

Answer 2

Answer:
Two reasons:

1). Because oceans are big and deep, and have a lot of water in them,
while by comparison, rivers are narrow, shallow, and carry less water.
It's like using a hundred droppers to pour water into an olympic-size pool.
The level of the water in the pool doesn't change much.

2). Because the sun shines on oceans, and tons of water evaporates
from them. That's where the water comes from to make rain and snow,
and to keep the rivers full, so that they can keep flowing into oceans.
It's a cycle. The same water flows into the oceans from the rivers,
then evaporates from the oceans, fills the rivers, and flows into the
oceans again . . . millions of times.

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How does changing elevation affect air pressure?

Answers

The greater the elevation, the less air pressure there is.

Is sand made of cells

Answers

no because it is not a living thing

No because it isn't a living creature like humans and plants hope that helped

Astronomy can best be described as a/an

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as·tron·o·my- the branch of science that deals with celestial objects, space, and the physical universe as a whole. That's the definition hope it is what you need and that it helps:)

The study of heavenly bodies.

How that differs from astrophysics, astro dynamics, cosmology, etc., I'm not entirely sure.

A certain material has a mass of 565 g while occupying 50 cm3 of space. What is this material?

Answers

Answer:

Lead

Explanation:

To get the density of the material, the formula would be:

mass divided by volume which is given by $d = \frac { m } { v }$ .

Here in this problem, we are given a mass of $565 g$ which occupies a volume of $50 cm^3$ .

So plugging the data in the above formula to find the density:

Density = $\frac { 565 } { 50 } = 11.3$

From the table, we can see that the material is Lead which has a density of 11.3c/cm^3.

Explain the Impulse-Momentum Theorem.

Answers

The impulse-theorem states that the change in momentum of an object is equal to the impulse exerted on it

Explanation:

The impulse-theorem states that the change in momentum of an object is equal to the impulse exerted on it.

Mathematically, we have:

- The impulse is defined as the product between the force exerted (F) and the duration of the collision ( $\Delta t$ ):

$I=F \Delta t$

- The change in momentum is equal to the product between the mass of the object (m) and the change in velocity ( $\Delta v$ ):

$\Delta p = m \Delta v$

So, the theorem can be written as

$F\Delta t = m \Delta v$

This theorem can be proved by using Newton's second law. In fact, we know that

$F=ma$ (1)

where a is the acceleration of the object. However, we can re-write the acceleration as the rate of change of velocity:

$a=(\Delta v)/(\Delta t)$

Therefore, (1) becomes:

$F=m(\Delta v)/(\Delta t)$

And by re-arranging,

$F\Delta t = m \Delta v$

Which is exactly the formula of the impulse theorem.

Learn more about impulse and momentum:

brainly.com/question/9484203

#LearnwithBrainly

slugs are the only member of what that have no shells

Answers

Slugs belong to the group called gastropods

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3 food chains in the African savanna :)

5. Limestone typically doesn't accumulate in the ocean at depths below 4,000 meters because below that depth, calcite is _______.6. Based on the principle of original horizontality, geologists conclude that layers of sedimentary rock that have been tilted must have been subjected to _______.7. Based on the principle of inclusions, the cobbles in conglomerate must have been formed _______ the conglomerate.8. Geologists use the principle of _______ to justify using fossils in a sample of sedimentary rock to determine the rock’s age.9. Partings between adjacent beds of sedimentary rock may represent periods of _______, which could range from a few decades to a few centuries.10. Some graded beds, especially those resulting from deposition by a fast-moving debris flow, are reversed, which means _______ material is at the top instead of at the bottom.

How do you find weight =mass×gravitational acceleration

A low-pressure sodium vapor lamp whose wavelength is 5.89 x 10^−7 m passes through double-slits that are 2.0 x 10^−4 m apart and produces an interference pattern whose fringes are 3.2 x 10^−3 m apart on the screen. What is the distance to the screen?3 meters 2.7 meters 1.6 meters 1.1 metersits literally 1.1 meters I got it right