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Zarrin [17]
3 years ago
11

PLEASE ANSWERRRRRRRRR

Chemistry
1 answer:
ira [324]3 years ago
3 0

Answer:

C. how the size of a magnet affects the strength of its magnetic pull on objects.

Explanation:

"Magnetic force" is <em>inversely proportional to distance squared. </em>This is also related to the size of a magnet. The bigger the size, the bigger the domain it occupies and the stronger the magnetic field. However, this is not often the case and it largely depends on the types of magnets.

In the situation above, Jazelle wanted to determine how her five different-sized magnet affect the strength of their magnetic pull on the paper clips. In order to do this, she tried to<em> measure the distance</em>. The<em> closer the distance</em>, the <em>higher the magnetic field</em> and the stronger the strength. The farther the distance, the<em> lower the magnetic field</em> and the <em>weaker the strength.</em>

So, this explains the answer.

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6th grade science please help me (:
Allushta [10]
A. Thermometer is the weather instrument that has most improved the accuracy of weather forecasts over the past 40 years.
3 0
3 years ago
The problems explain what I need, I also need the work shown or explained at the least
PtichkaEL [24]

Answer:

Q1/0.83L

Q2/ 6.606L

Q3/ 3.27L

Explanation:

All the question Charles law for ideal gases

And his law up right there ☝️

3 0
2 years ago
How many moles of O2 are needed to react with 2.55 mol of C2H2?
Lelechka [254]

Answer: 6.38 moles of O_2 are needed to react with 2.55 mol of C_2H_2

Explanation:

The balanced chemical reaction for the combustion of ethyne is:

2C_2H_2+5O_2\rightarrow 4CO_2+2H_2O

According to stoichiometry:

2 moles of C_2H_2 require = 5 moles of O_2

Thus 2.55 mol of C_2H_2 require = \frac{5}{2}\times 2.55=6.38 moles of O_2

Thus 6.38 moles of O_2 are needed to react with 2.55 mol of C_2H_2

3 0
3 years ago
What happens when wind sweeps up sand and throws it against a big rock?
RideAnS [48]
In deserts, wind often causes weathering by blowing sand and other material against cliffs and large rocks. This wears them down and creates more bits of sand and dust. Over time, the rock is scraped and polished away. ... When a gust of wind blows, it picks up sand and other bits of material.
4 0
2 years ago
A 15.0 mL urine from a dehydrated patient has a density of 1.019g/mL. What is the mass of the sample, reported in mg?
oee [108]

Answer:

Mass of sample in mg = 15,285 mg

Explanation:

Given:

Volume of urine sample = 15 ml

Density of sample = 1.019 g/ml

FInd:

Mass of sample in mg

Computation:

Mass = density x volume

Mass of sample in mg = Volume of urine sample x Density of sample

Mass of sample in mg = 1.019 x 15

Mass of sample in mg = 15.285 gram

Mass of sample in mg = 15.285 x 1,000

Mass of sample in mg = 15,285 mg

8 0
3 years ago
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