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3 years ago

10

What is the gravitational force cause

2 answers:

Norma-Jean [14]3 years ago

5 0

Answer: Gravity

Explanation: The answer is gravity: an invisible force that pulls objects toward each other. ... So, the closer objects are to each other, the stronger their gravitational pull is. Earth's gravity comes from all its mass. All its mass makes a combined gravitational pull on all the mass in your body.

kotegsom [21]3 years ago

3 0

Objects with more mass have more gravity. ... So, the closer objects are to each other, the stronger their gravitational pull is. Earth's gravity comes from all its mass. All its mass makes a combined gravitational pull on all the mass in your body.

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Name or write the formula for the following polyatomic ions

Delvig [45]

Answer:

Name Formula

nitrite ion NO2−

permanganate ion MnO4−

phosphate ion PO43−

hydrogen phosphate ion HPO42−

Explanation:

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3 years ago

As a human being, we are considered to be a ..... because we rely on other organism for food

ryzh [129]

Heterotrophs i think :)

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3 years ago

Read 2 more answers

How many atoms of phosphorus are in 3.80 mol of copper(II) phosphate?

Sladkaya [172]

Wouldn't you take Avogadro' number and multiply by 3.80 maybe

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3 years ago

A cheeseburger from a fast food restaurant contains 19 g of fat, 20 g of carbohydrate, and 28 g of protein. how many kcal of ene

Burka [1]

I believe the answer is D

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3 years ago

Formaldehyde is a carcinogenic volatile organic compound with a permissible exposure level of 0.75 ppm. At this level, how many

Flauer [41]

Answer : The amount of formaldehyde permissible are, $5.4\times 10^{-6}g$

Explanation : Given,

Density of air = $1.2kg/m^3=1.2g/L$ $(1kg/m^3=1g/L)$

First we have to calculate the mass of air.

$\text{Mass of air}=\text{Density of air}\times \text{Volume of air}$

$\text{Mass of air}=1.2g/L\times 6.0L$

$\text{Mass of air}=7.2g$

Now we have to calculate the amount of formaldehyde.

Permissible exposure level of formaldehyde = 0.75 ppm = $\frac{0.75g\text{ of formaldehyde}}{10^6g\text{ of air}}$

Amount of formaldehyde in 7.2 g of formaldehyde = $7.2g\times \frac{0.75g\text{ of formaldehyde}}{10^6g\text{ of air}}$

Amount of formaldehyde in 7.2 g of formaldehyde = $5.4\times 10^{-6}g$

Thus, the amount of formaldehyde permissible are, $5.4\times 10^{-6}g$

8 0

3 years ago