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vichka [17]
3 years ago
11

What is hard water and what is soft water

Physics
2 answers:
katrin [286]3 years ago
5 0
Water that is "hard" <span>contains a certain amount of dissolved minerals (like calcium and magnesium). 
</span>Water that is "soft" <span>is a certain type of treated </span>water. It contains <span>only one type of ion, which is sodium. An example of this is rainwater because it is naturally </span>soft water.
defon3 years ago
3 0

Answer:

Hard water... is water that contains an obvious amount of broke down minerals (like calcium and magnesium). Delicate water... is dealt with water in which the main particle is sodium. As water falls, it is normally delicate. ... Then again, delicate water tastes salty and is some of the time not reasonable for drinking.

Explanation:

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The electric current in a wire is 1.5A. How many electrons flow past a given point in a time of 2s?
kipiarov [429]

Answer:

The amount of electrons that flow in the given time is 3.0 C.

Explanation:

An electric current is defined as the ratio of the quantity of charge flowing through a conductor to the time taken.

i.e           I = \frac{Q}{t} ...................(1)

It is measure in Amperes and can be measured in the laboratory by the use of an ammeter.

In the given question, I = 1.5A, t = 2s, find Q.

From equation 1,

            Q = I × t

                = 1.5 × 2

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The amount of electrons that flow in the given time is 3.0 C.

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3 years ago
A 10.-kilogram object, starting from rest, slides down a frictionless incline with a constant acceleration of 2.0 m/sec2 for fou
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Answer:

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Explanation:

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Substitute into the formula above

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Action and reaction are equal in magnitude and opposite in direction.Then Why do not balance each other
guajiro [1.7K]

Answer:

Action and reaction are equal in magnitude and opposite in direction but they do not balance each other because they act on different objects so they don't cancel each other out.

hope this will help you more

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What is a concave lens?
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Please see attached image for reference.

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