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3 years ago

1. A note has a wavelength of 0.77955 m. If the speed of sound is 343.00 m/s, what pitch is this note?

Chemistry

2 answers:

nata0808 [166]3 years ago

8 0

Answer:1. A note has a wavelength of 0.77955 m. If the speed of sound is 343.00 m/s, what pitch is this note?

2. A note has a wavelength of 0.52028 m. If the speed of sound is 343.00 m/s, what pitch is this note?

3. A note has a wavelength of 0.65552 m. If the speed of sound is 343.00 m/s, what pitch is this note?

4. A D note has a frequency of 587.33 Hz. Calculate its wavelength in meters.

0.584m

5. A B note has a frequency of 493.88 Hz. Calculate its wavelength in meters.

0.6945m

6. An F note has a frequency of 698.46 Hz. Calculate its wavelength in meters.

7. A note has a wavelength of 0.5840 m. If the speed of sound is 343.00 m/s, what pitch is this note?

587.328767123

8. A note has a wavelength of 0.4375 m. If the speed of sound is 343.00 m/s, what pitch is this note?

9. An E note has a frequency of 659.26 Hz. Calculate its wavelength in meters.

0.438m

10. A G note has a frequency of 783.99 Hz. Calculate its wavelength in meters.

0.520m

Explanation:

IRINA_888 [86]3 years ago

3 0

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Consider an oxygen-concentration cell consisting of two zinc electrodes. One is immersed in a water solution with a low oxygen c

blsea [12.9K]

Answer:

(a) The anode electrode which comprises the zinc electrode being placed in a water solution with low oxygen concentration.

(b) Cathodic reaction is: $O_{2} + 2H_{2}O + 4e^{-}$ ⇒ $4OH^{-}$

Anodic reaction is: $Zn$ ⇒ $Zn^{2+} + 2e^{-}$

Explanation:

In the given problem, we have an oxygen-concentration cell consisting of two zinc electrodes. One is immersed in a water solution with a low oxygen concentration and the other in a water solution with a high oxygen concentration. The zinc electrodes are connected by an external copper wire.

(a) Which electrode will corrode?

The electrode that will corrode is the anode electrode which comprises the zinc electrode being placed in a water solution with low oxygen concentration.

(b) Write half-cell reactions for the anodic reaction and the cathodic reaction.

Cathodic reaction is: $O_{2} + 2H_{2}O + 4e^{-}$ ⇒ $4OH^{-}$

Anodic reaction is: $Zn$ ⇒ $Zn^{2+} + 2e^{-}$

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3 years ago

Please balance the equation, putting the correct coefficient in each box.

Mariulka [41]

Answer: $Bi(OH)_3+3HNO_3\rightarrow 3H_2O+Bi(NO_3)_3$

Explanation:

According to the law of conservation of mass, mass can neither be created nor be destroyed. Thus the mass of products has to be equal to the mass of reactants. The number of atoms of each element has to be same on reactant and product side. Thus chemical equations are balanced.

The balanced equation will be:

$Bi(OH)_3+3HNO_3\rightarrow 3H_2O+Bi(NO_3)_3$

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3 years ago

How are the African plate and south American plate moving relative to each other

Kamila [148]

They are moving away from each other

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3 years ago

1. Calculate the momentum of a 1,500 kg car traveling at 6 m/s.

ziro4ka [17]

Answer:

1. $9000kgm/s$

2. $258,000kgm/s$

Explanation:

1.Momentum is given as the product of mass by velocity of an object.

Momentum, $p=mv$

m=1,500kh, v=6m/s

$p=1500*6\\p=9000kgm/s$

2.Momentum, $p=mv$

m=7800kg, v=30m/s

$p_1=7800*30\\p_1=234,000kgm/s\\$

new mass=7800+800=8600

As mass is increased, so does the resultant velocity as mass is directly proportional to velocity.

$p_2=8600*30\\p_2=258,000kgm/s$

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3 years ago

what is the proper name for the following alkyl side group where the main carbon chain is denoted with a squiggly line?

chubhunter [2.5K]

The proper name for the following alkyl side group where the main carbon chain is denoted with a squiggly line is isopropyl.

In natural chemistry, an alkyl substituent is an alkane missing one hydrogen. The term alkyl is intentionally unspecific to include many viable substitutions. An acyclic alkyl has the overall formulation of CₙH₂ₙ₊₁.

An alkyl is a purposeful institution of an organic chemical that includes only carbon and hydrogen atoms, that are organized in a chain. Examples include methyl CH3 (derived from methane) and butyl C2H5 (derived from butane). they may be now not located on their own however are discovered attached to different hydrocarbons.

what is an alkyl group? Alkyl group is shaped through putting off a hydrogen atom from the molecule of alkane. Alkanes are quite regularly represented as R-H and here R stands for alkyl group. the overall method of the alkyl organization is CₙH₂ₙ₊₁. The smallest alkyl organization is CH3 referred to as methyl.

Learn more about alkyl group here:- brainly.com/question/14272539

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2 years ago