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3 years ago

Where does salt in the ocean come from

Physics

2 answers:

jeka57 [31]3 years ago

7 0

I'm not sure if this is correct but,

I'm quite sure it's from the minerals in the water and it could come from the marine animals that live in the ocean. It could also come from the sand.

Bingel [31]3 years ago

5 0

Answer:

Salt in the ocean comes from two sources: runoff from the land and openings in the seafloor. Rocks on land are the major source of salts dissolved in seawater. Rainwater that falls on land is slightly acidic, so it erodes rocks.

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The sun produces energy by forming in its core

Shalnov [3]

The Sun produces energy by forming "Helium" in its core by the process of "Nuclear fusion"

Hope this helps!

7 0

3 years ago

Select the correct answer.

Yuliya22 [10]

Answer:

Explanation:

7 0

2 years ago

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An object moves in a straight path. Its position x as a function of time t is presented by the equation x(t) = at – bt2+c, where

ankoles [38]

Answer:

The answer is below

Explanation:

Given that:

x(t) = at – bt2+c

a) x(t) = at – bt2+c

Substituting a = 1.4 m/s, b = 0.06 m/s2 and c =50 m gives:

x(t) = 1.4t - 0.06t² + 50

At t = 5, x(5) = 1.4(5) - 0.06(5)² + 50 = 55.5 m

At t = 0, x(0) = 1.4(0) - 0.06(0)² + 50 = 50 m

The average velocity (v) is given as:

$v=\frac{x(5)-x(0)}{5-0}\\ \\v=\frac{55.5-50}{5-0}=1.1\\ \\v=1.1\ m/s$

b) x(t) = 1.4t - 0.06t² + 50

At t = 10, x(10) = 1.4(10) - 0.06(10)² + 50 = 58 m

At t = 0, x(0) = 1.4(0) - 0.06(0)² + 50 = 50 m

The average velocity (v) is given as:

$v=\frac{x(10)-x(0)}{10-0}\\ \\v=\frac{58-50}{10-0}=0.8\\ \\v=0.8\ m/s$

c) x(t) = 1.4t - 0.06t² + 50

At t = 15, x(5) = 1.4(15) - 0.06(15)² + 50 = 57.5 m

At t = 10, x(10) = 1.4(10) - 0.06(10)² + 50 = 58 m

The average velocity (v) is given as:

$v=\frac{x(15)-x(10)}{15-10}\\ \\v=\frac{57.5-58}{15-10}=0.1\\ \\v=0.1\ m/s$

6 0

3 years ago

How far will a freely falling object fall from rest in six seconds?

navik [9.2K]

Here are two ways to do it:

Way #1:
-- You know that gravity accelerates things that are falling freely, adding 9.8 m/s to their speed every second.

-- After 6 seconds, an object that fell from rest winds up falling at (9.8 x 6) = 58.8m/s.

-- During that time, its average speed was 1/2(0 + 58.8) = 29.4 m/s .

-- In 6 seconds, at an average speed of 29.4 m/s, it covers (29.4 x 6) = 176.4meters.

Way #2:
This way only works if you remember the formula for the distance covered during uniform acceleration.

D = 1/2 (acceleration) (time)²

Acceleration = gravity = 9.8 m/s²
Time = 6 seconds

D = 1/2 (9.8) (6)² = 176.4 meters.

4 0

3 years ago

Read 2 more answers

Satellite's A and B orbit the Earth above the exact same point on the Earth's surface. Satellite A is one mile from the Earth's

zalisa [80]

Answer:A) Their linear velocitie

Explanation:

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3 years ago