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harkovskaia [24]
3 years ago
9

The average salinity of sea water is A. 3% B. 3.5% C. 2.5% D. 2%

Physics
2 answers:
mel-nik [20]3 years ago
8 0
The average salinity of seawater is  approximately 3.5%, or 35 per thousand.
nadezda [96]3 years ago
7 0

Answer:

In terms of percent, the salinity of most sea water is between 2.5 and 4.5.

Explanation:

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Your friends sit in a sled in the snow. If you apply a force pf 75 N to them, they have an acceleration of 0.9 m/s ^ 2. What is
Elza [17]

Answer:

Mass of the sled in the snow 83.33 kg.

<u>Explanation</u>:

Given that,  

Force applied to move the sled in the snow (F) = 75N

\text { Acceleration }(a)=0.9 \mathrm{m} / \mathrm{s}^{2}

We know that

Newton's second law of motion is  

\text { Force }=\text { mass } \times \text { acceleration }

F = ma (Or "force" is equal to "mass" times "acceleration".)

So if we move this around we can isolate mass and get mass

\text { Mass }=\frac{\text { force }}{\text { accelearation }}

\mathrm{M}=\frac{75}{0.9}

M = 83.33 kg

Mass of the sled in the snow <u>83.33 kg.</u>

3 0
3 years ago
What did the scientist say to the hydrogen atom that claimed it lost an electron
lys-0071 [83]

Answer:

"Are you positive?"

5 0
4 years ago
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The members of the track team will be able to run faster after they drink the new energy drink.” Explain why this statement is a
Mars2501 [29]
Because your taking a educated guess on what will happened if the track member drinks the energy drink
3 0
3 years ago
"5 N, up" is an example of a ___.<br> OA) force<br> OB) mass<br> OC) weight<br> OD) magnitude
Sunny_sXe [5.5K]

Answer:

A) Force

Explanation:

It is an example of force since force is a vector quantity so it has magnitude and direction. In this case the magnitude is equal to 5 [N] and the direction is upward.

The weight can not be, as it always acts downward.

Mass is not a force, its unit is given usually in kilogram [kg]

5 0
3 years ago
PSYCHOLOGY <br> Which of these statements are false ?
nataly862011 [7]

Answer:

The false statement has to be that neruotransmitters are in the spinal cord.

Explanation:

Neruotransmitters are in no was associated with the spinal cord. That is more related to nerves and muscles. Neurotransmitters are in the Phasma Membrane acording to sciencedirect.com.

4 0
2 years ago
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