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3 years ago

Which of the following is an example of a concentric contraction

Chemistry

2 answers:

ladessa [460]3 years ago

8 0

Answer:

B: bicep curl

Explanation:

In a bicep curl the muscle in the biceps contracts or shortens creating a tension on the muscle. During concentric contraction a lot of force is generated that allows the movement of an object such as a dumbbell. As the dumbbell is moved to the shoulder the bicep bulges or contracts. Concentric contraction is used for muscular hypertrophy.

anastassius [24]3 years ago

3 0

The best and the correct answer among the choices provided by the question is the second choice or letter B.

A bicep curl is a<span>n example of a concentric contraction.

</span>I hope my answer has come to your help. Have a nice day ahead and may God bless you always!

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1. When this equation is balanced, Fe + 02 -.--> Fe203, what is the

Vilka [71]

Fe + O2 → Fe2O3

After balancing the eq.

4Fe + 3O2 → 2Fe2O3

Hope this will help u mate :)

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3 years ago

If you are told that one of them is Cr2O3 and the other is OsO4, which one do you expect to be the yellow solid?

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3 years ago

Read 2 more answers

What kinds of elements form an ionic bond?

Vanyuwa [196]

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3 years ago

Type the correct answer in the box. a pharmacist works with a 1.75 m solution of sodium bromide (nabr) and water. the volume of

Elodia [21]

Answer: 147 mL

Explanation:

<u>Given:</u>

Molarity of the sodium bromide (NaBr) solution (M1) = 1.75 M

Volume of the solution (V1) = 84 mL

Molarity of the diluted NaBr solution (M2) = 1 M

Using the dilution formula to solve for V2:

$\begin{gathered}M_{1} V_{1}=M_{2} V_{2} \\V_{2}=(1.75 \mathrm{M} \times 84 \mathrm{~mL}) / 1 \mathrm{M} \\V_{2}=147 \mathrm{~mL}\end{gathered}$

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8 0

1 year ago

The empirical formula of a group of compounds is CHCl. Lindane, a powerful insecticide, is a member of this group. The molar mas

Sergeeva-Olga [200]

Answer:

Explanation:

since, n = molar mass / empirical formula mass

Empirical formula mass = Total mass of atoms present in empirical formula

CHCl = 12+1+35.5

= 48.5

Given, Molar mass = 290.8 g.

So, n = 290.8/48.5

= 5.995 , that is approx 6.

So, Molecular formula = n × Empirical formula

= 6 × CHCl

= $C_{6}H_{6}Cl_{6}$

So, Number of C = 6

3 0

3 years ago