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givi [52]
3 years ago
5

If a drum skin vibrates with a frequency of 100 Hz, how many times does it move up and down each second?

Chemistry
1 answer:
bogdanovich [222]3 years ago
4 0
100 HZ the drum will move up and down 30 each second
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Several constructive processes helped build mountains on Earth. All BUT one of these is a way mountains can be built. That is
ValentinkaMS [17]

C) landslides.

Explanation:

Landslides is not a way in which mountains are built on earth. It is a destructive process in nature that causes the slumping and wasting of land masses.

Landslide is a form of mass wasting and does no build masses.

Volcanoes helps to build mountains on the crust and this way, igneous rocks are formed.

Deposition process upbuilds to form sedimentary rocks.

Faulting is a can also be a constructive process that builds a mountain in the case of horsts and graben

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3 0
3 years ago
Which class of elements include all of the elements that are gases at room temperature
Verizon [17]

The nonmetals are divided into two categories: reactive nonmetals and noble gases. Noble gases are in group 18: helium (He), neon (Ne), argon (Ar), krypton (Kr), xenon (Xe) and radon (Rn). hope this helps

6 0
3 years ago
What mass of silver nitrate is needed to prepare 100cm3 of silver nitrate solution,
Elan Coil [88]
Hope this helps you.

6 0
3 years ago
Which statement is true of magnets
Harrizon [31]

The statement that is true about magnets is ''Similar poles of a magnet repel each other.''

<h3>What are the characteristics of magnet?</h3>

All magnets have both north and south poles. Opposite poles attract each other, whereas the similar poles repel each other. When you rub a piece of iron along a magnet, this force creates a magnetic field.

So we can conclude that The statement that is true about magnets is ''Similar poles of a magnet repel each other.''

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4 0
2 years ago
Identify each of the following half-reactions as either an oxidation half-reaction or a reduction half-reaction. half-reaction i
Natasha2012 [34]

Answer: Oxidation reaction:  Al(s)\rightarrow Al^{3+}(aq)+3e^-

Reduction reaction:  Sn^{2+}(aq)+2e^-\rightarrow Sn(s)

Overall redox reaction : 2Al(s)+3Sn^{2+}(aq)\rightarrow 2Al^{3+}(aq)+3Sn(s)

Explanation:

Oxidation-reduction reaction or redox reaction is defined as the reaction in which oxidation and reduction reactions occur simultaneously.

Oxidation reaction is defined as the reaction in which a substance looses its electrons. The oxidation state of the substance increases.

Al(s)\rightarrow Al^{3+}(aq)+3e^-

Reduction reaction is defined as the reaction in which a substance gains electrons. The oxidation state of the substance gets reduced.

Sn^{2+}(aq)+2e^-\rightarrow Sn(s)

Overall redox reaction : 2Al(s)+3Sn^{2+}(aq)\rightarrow 2Al^{3+}(aq)+3Sn(s)

5 0
3 years ago
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