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zvonat [6]
3 years ago
13

what is the recommended daily dosage of flouride for a child over three years of age living in an area where drinking water is f

ree fluoride
Physics
1 answer:
Finger [1]3 years ago
7 0
<span>What is the recommended daily dosage of flouride for a child over three years of age living in an area where drinking water is free fluoride</span>child:

3-6: 0.5mg 
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9. How much work is done when a 15kg box is lifted to a height of 2 meters?
torisob [31]

Answer: W = 294 J

Explanation: Solution:

Work is expressed as the product of force and the distance of the object.

W = Fd        where F = mg

W= Fd

   = mg d

   = 15 kg ( 9.8 m/s²) ( 2m )

   = 294 J

5 0
3 years ago
How to express whole numbers in scientific notation?
SCORPION-xisa [38]

Answer:

To write a number in scientific notation. First write a decimal point in the numbers so that there's only one digit to the left of the decimal point.

5 0
3 years ago
I will mark you brainlist!
kirill115 [55]
Tornado- Trees knocked down, debris everywhere, ground and dirt scattered.
7 0
2 years ago
Stars are formed in which of the following?
MAXImum [283]

    Stars are formed in <u>nebulas</u>, interstellar clouds of dust and gas.

6 0
3 years ago
The formula $F = \frac{9}{5} C + 32$ can be used to convert temperatures between degrees Fahrenheit ($F$) and degrees Celsius ($
slamgirl [31]

Answer:

-30° C

Explanation:

Data provided in the problem:

The formula for conversion as:

F  = (9/5)C + 32

Now,

for the values of F = -22 , C = ?

Substituting the value of F in the above formula, we get

-22 = (9/5)C + 32

or

-22 - 32 = (9/5)C

or

(9/5)C = - 54

or

C = - 54 × (5/9)

or

C = - 30 °

Hence, -22 Fahrenheit equals to -30°C

7 0
2 years ago
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