Which of the following is a difference between electromagnetic waves and sound waves?

1 answer:

4 0

Sound waves are longitudinal waves that is, are transmitted in the same direction of oscillation of the particles in the medium. Electromagnetic waves are transverse ie, the electric and magnetic fields, which are perpendicular to each other, oscillate perpendicularly to the direction of wave propagation.

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I am a subatomic particle that is positively charged what am I?

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The right answer is Proton.

Additional Information:

There are three types of subatomic particles. They are:

Proton
Electron
Neutron

Proton is a positively charged particle,Electron is negatively charged particle and Neutron is charge less.

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How did you get the 3.2?

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I don't understand what you mean??

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What is the name of the first state

irina1246 [14]

Answer:

Delaware

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3 years ago

The ksp of pbi2 is 1.4 x 10-8. what is the molar solubility of lead(ii iodide in a solution of 0.400 m sodium iodide?

tino4ka555 [31]

The solubility product of a substance us calculated by the product of the concentration of the dissociated ions in the solution raise to the stoichiometric coefficient of the ions. Therefore, we need the dissociation reaction. For this, it will have the reaction:

PbI2 = Pb^2+ + 2I-

We solve as follows:

Ksp = [Pb2+][I-]^2 = 1.4 x 10-8
1.4 x 10-8 = x(2x)^2
1.4 x 10-8 = 4x^3
x = 1.5x10^-3 M

The molar solubility would be 1.5x10^-3 M.

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