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Bess [88]
2 years ago
8

Quantities that can be described completely by their magnitude or size are called vector quantities.

SAT
1 answer:
gogolik [260]2 years ago
8 0

In physics, there are two types of quantities

  • Scalar quantity
  • Vector quantity

Scalar quantities are quantities that have magnitude but no direction. Examples of such quantities include speed, pressure, etc

Vector quantities are quantities that have both magnitude and direction. Examples of such quantities include velocity, acceleration etc.

Vector quantities are represented by an arrow over the position of the object to denote its direction.

Learn more on vector quantities here: brainly.com/question/356987

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How many liters of 60% alcohol solution should be added to 40 liters of a 20% alcohol solution to make a 50% solution?
IgorLugansk [536]

Exactly 80 liters of 20% are needed.

Let quantity of 20% alcohol solution be added : x liters  

Here is the work:

> x*20% + 40 * 50% = (x+40) * 30%  

> x*0.2 + 40*0.5 = (x+40)*0.3 ..(converting percentages into decimal)  

> 0.2x + 20 = 0.3x + 12

> 20-12 = 0.3x - 0.2x (Rearranging similar terms)

> 8 = 0.1 x

Hence x = 8/0.1  

Ans 80 Litres

7 0
3 years ago
What type of agriculture was practiced in new england?.
Anon25 [30]

Answer:

The New England colonies had rocky soil, which was not suited to plantation farming, so the New England colonies depended on fishing, lumbering, and subsistence farming.

7 0
2 years ago
The area between z= -2.31 and z= 0.47
siniylev [52]

Answer:

0.67038

Explanation:

One z-value is negative and the other is positive.

This means we are looking for area between the two given z-values on opposite sides of the mean.

From z-table attached, the area at z = -2.31 is 0.98956

Also, from the second z-table attached, the area at z = 0.47 is 0.68082

But since we are looking for the area between both z-scores, we will now have;

P(-2.31 < x < 0.47) = (0.98956 + 0.68082) - 1

P(-2.31 < x < 0.47) = 0.67038

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3 years ago
I love my kitty cat
anygoal [31]
Lol who WOULDNT love there kitty cat
8 0
3 years ago
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Which of the following is an example of operant conditioning?
inessss [21]

Answer:

Positive Reinforcement

Explanation:

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3 years ago
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