1 year ago

Sound waves are what type of waves?

Chemistry

1 answer:

marshall27 [118]1 year ago

6 0

longitudinal wave.... is the right answer

<h2><em># Good morning</em></h2>

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12.Calculate the wavelength of an object moving with a velocity of 5 x105 m s-1

uranmaximum [27]

Answer:

Wavelength, $\lambda=3.3\times 10^{-18}\ m$

Explanation:

We have,

Velocity of the object, $v=5\times 10^5\ m/s$

Mass of the object, $m=4\times 10^{-22}\ kg$

It is required to find the wavelength of the object. The relation between wavelength and velocity of the object is given by :

$\lambda=\dfrac{h}{mv}$

h is Planck's constant

$\lambda=\dfrac{6.6\times 10^{-34}}{4\times 10^{-22}\times 5\times 10^5}\\\\\lambda=3.3\times 10^{-18}\ m$

So, the wavelength of the object is $3.3\times 10^{-18}\ m$ .

5 0

3 years ago

Compare a sodium ion and neutral sodium atom in size. what causes the size difference

n200080 [17]

A cation is smaller than its parent atom.
Therefore, here a sodium ion is smaller than the neutral sodium atom.

Reason: Since the sodium atom loses an electron to form an electropositive ion(cation), its nuclear charge increases(the number of protons exceeds the number of electrons) and the orbital electrons are pulled with a greater energy.
Thus,the sodium ion shrinks in size.

4 0

2 years ago

Name an acids and a bases

Bumek [7]

Answer:

HCl for acid, NaOH for base.

Explanation:

Acids start with H.

Bases end with OH.

6 0

2 years ago

I need helpppppppppp

STatiana [176]

Influencing Behavior is the only incorrect option. Everything else is correct including drawing conclusions.

8 0

2 years ago

01:58<br> Which is the amount of matter in an object?<br> weight<br> mass<br> volume<br> pounds

White raven [17]

The answer for this question is Mass

8 0

2 years ago