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Cerrena [4.2K]
3 years ago
6

A scientist wants to measure out 0.31 liters of a liquid, but she can only find a beaker that measures volume in centiliters. Ho

w many centiliters should she measure to equal 0.31 liters?
Mathematics
2 answers:
Anarel [89]3 years ago
6 0

1 liter = 100 centiliter

0.31 * 100 = 31

31 centiliters = 0.31 liters

mars1129 [50]3 years ago
5 0

1 liter = 100 centiliter

0.31 * 100 = 31

31 centiliters = 0.31 liters

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The focal lengths of the objective lens and the eyepiece of a microscope are 0.50 cm and 2.0 cm, respectively, and their separat
VladimirAG [237]

Answer:

- 103.7

Step-by-step explanation:

Given:

Focal length of the eyepiece, f = 2.0 cm

Focal length of the objective lens, f' = 0.50 cm

Separation for minimum eyestrain = 6,0 cm

Image distance, v = - 25 cm

Now, from the lens formula,

\frac{1}{f}=\frac{1}{u}+\frac{1}{v}

here, u is the object distance

on substituting the respective values, we get

\frac{1}{2}=\frac{1}{u}+\frac{1}{-25}

or

u = 1.852 cm

also, the separation is adjusted for minimum eyestrain,

therefore, image distance for the objective lens, v' = 6 - 1.852 = 4.148 cm

Now, for the objective lens

using the lens formula, we get

\frac{1}{0.5}=\frac{1}{u'}+\frac{1}{4.418}

Here, u' is the distance between the physical object and objective lens

or

u' = 0.568 cm

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Magnification, m = -\frac{vv'}{ff'}

or

m =-\frac{25\times4.418}{0.5\times2}

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m = - 103.7

4 0
2 years ago
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Drupady [299]

Answer:

21/2

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6 0
2 years ago
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sally is on a scavenger hunt. a clue tells her to walk 100 steps due south from the starting point and then walk west when she g
Sophie [7]

Answer:

She should take 112 steps west  

Step-by-step explanation:

* Lets explain the relation between the four directions

- North and South on the same line by in opposite directions

- East and West on the same line by in opposite directions

- East and West are perpendicular to the North and South

* Now lets study the situation i the problem

- Sally 100 steps due to South from the starting point

- Then she walk West when she gets the next clue

- The distance between her starting point and ending point is 150 steps

∵ The South is perpendicular to the West

- Lets consider her trip is a right angle triangle ABC, where AB

 her steps South and BC her steps West and AC the distance

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∵ AB = 100

∵ AC = 150

∵ m∠B = 90°

- By using Pythagoras theorem

∵ BC = √(AC² - AB²)

∴ BC = √(150² - 100²) = 50√5 = 111.8 steps

* She should take 112 steps west  

8 0
3 years ago
Calculate the perimeter of the regular hexagon which has 8 sides <br><br> Pls help I’m stuck
snow_lady [41]
6+6+6+6+6+6+6+6= 48

The perimeter is 48.
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What is the volume of a cardboard box that measures 1 inch by 5 inches by 7 inches?
Nutka1998 [239]

Answer:

35 cubic inches

Step-by-step explanation:

V= lwh

1*5*7= 35

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3 years ago
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