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Virty [35]
3 years ago
7

Jared is practicing for a golf tournament. His normal driver distance is 250 yards. He hits three balls with his driver, and the

y travel a distance of 190 yards, 195 yards, and 187 yards. Which of the following is true?
His drives are precise but not accurate

His drives are accurate but not precise

His drives are neither precise not accurate

His drives are both accurate and precise
Chemistry
1 answer:
Nutka1998 [239]3 years ago
4 0

Answer:

His drives are neither precise not accurate

Explanation:

It is true that his drives are neither precise nor accurate.

Accuracy is the exactness of measurement. It is the closeness of measured values to the true values.

In this problem, the true value is 250 yards, the measured values are 190 yards, 195 yards and 187 yards.

We can conclude that these numbers are very far from the true values. By virtue of that, they are inaccurate.

Precision is the ability to reproduce a set of experimental values. It is the closeness of the measured values to one another.

Jared failed to replicate his measured values over the three trials and so, his readings are not precise.

Therefore, his measurements are both imprecise and inaccurate.

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Measuring the volume of a object.
4 0
3 years ago
Explain why Ra is larger than Be. With 2 points.
igor_vitrenko [27]

Explanation:

<h2>Radium(Ra)=> </h2>

atomic number=88

<h2>BERYLLIUM (Be)=></h2>

atomic number =4

why is Ra larger than Be

<h3>1. since the atomic number of Ra is greater than Be, the number of electrons is more, which means there are more number of shells present in Ra than Be. </h3><h2>(atomic Radius)</h2>

<h2>2. the more the valence electron (excluding fully filled ones) the less is the nuclear attraction force</h2><h3>since Ra has more valence electron in its outermost shell, the nuclear attraction force is less which means that Ra 's size is greater than Be.</h3>

hope it helps:)

6 0
3 years ago
Natasha and Reanna observe a large airplane in the troposphere. Which experimental setup below would best determine how changing
snow_lady [41]

Answer:

i am pretty sure the answer is a

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8 0
3 years ago
Read 2 more answers
What mass of Ba3(PO4)2 is contained in 1575 mL of a 0.35M solution of Ba3(PO4)2
LekaFEV [45]

Answer:

= 331.81 g

Explanation:

Molarity is calculated by the formula;

Molarity = Moles/volume in liters

Therefore;

Moles = Molarity ×Volume in liters

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          = 0.55125 Moles

But; Molar mass of Ba3(PO4)2 is 601.93 g/mol

Thus;

Mass = 0.55125 moles × 601.93 g/mol

         <u>=331.81 g</u>

7 0
4 years ago
The approximate recommended daily dietary intake of the amino acid valine, c5h11no2, is 2.60 g for a 100 kg adult. what is this
Murrr4er [49]
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M(C₅H₁₁NO₂) = 5 · 12 + 11 · 1 + 1 · 14 + 2 · 16 · g/mol.
M(C₅H₁₁NO₂) = 117 g/mol.
n(C₅H₁₁NO₂) = m(C₅H₁₁NO₂) ÷ M(C₅H₁₁NO₂).
n(C₅H₁₁NO₂) = 2,60 g ÷ 117 g/mol.
n(C₅H₁₁NO₂) = 0,0222 mol.
n - amount of substance.
m - mass of substance.
M - molar mass of substance.
5 0
4 years ago
Read 2 more answers
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