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N76 [4]
3 years ago
6

Please help it’s a test due today

Chemistry
2 answers:
tiny-mole [99]3 years ago
7 0
The answer is it takes more force to move the lighter sack C)
ycow [4]3 years ago
5 0

Answer:

<u>c) More force has to be used to lift the heavier sack.</u>

Explanation:

Using more force to lift the heavy sack of rice makes you really tired. Thus it's harder to lift a 100 pound sack of rice than to lift a 5 pound bag of sugar.

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A weight of 100 pounds moved a distance of 12 feet equals 120 240 1200 ft.-lbs. of work.
Archy [21]
Work = Fdcos(alpha)

Where F is force, D is distance, and Alpha is the angle to the parallel plane (in this case the ground)

I’ll assume alpha is 0 since it’s not given

100 • 12 • cos(0) = 1200 ft-lbs
3 0
3 years ago
A 64.4-g sample of potassium chloride was added to 200.0 g of water at 20 degrees C. Is the solution saturated, unsaturated, or
Tomtit [17]
Hey there!:

is the solution <span>saturated  , ie :

</span>They are the ones that have reached the exact solubility coefficient.<span>If we mix 64.4 g of KCl at 200.0 g of water at 20 º C, we'll see that the 32.2 g will dissolve and the remainder (32.2 g) will precipitate, forming the bottom body. In this case we will then have a solution saturated with background. However, if we want only the saturated solution, simply perform a simple filtration to separate the precipitate from the saturated solution.

hope this helps!</span>
7 0
3 years ago
How many protons are in an ion with 36 electrons and a –1 charge?
Lorico [155]
35 protons which equals 35 electrons but bromine anion with a charge of -1 with one extra electron so 35+1=36 electrons 
8 0
3 years ago
Which family on the periodic table has a filled outer energy level?
Ede4ka [16]

The family on the periodic table that has a filled outer energy level is VIIIA. The answer is letter D. They are also called the noble gases or inert gases. They are virtually unreactive towards other elements or compounds. They are found in trace amounts in the atmosphere. Their elemental form at room temperature is colorless, odorless and monatomic gases. They also have full octet of eight valence electrons in their highest orbitals so they have a very little tendency to gain or lose electrons to form ions or share electrons with other elements in covalent bonds.

6 0
3 years ago
It is 762 miles from here to Chicago. An obese physics teacher jogs at a rate of 5.0 miles every 20.0 minutes. How long would it
Lina20 [59]

Answer:

3,048 minutes

Explanation:

762 divided by 5

that number times 20

5 0
3 years ago
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