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3 years ago

Pressure due to a heel of the pointed shoe is greater than the pressure of the elphant legs

Physics

1 answer:

Natalka [10]3 years ago

4 0

Answer:

Pressure is inversely proportional to the area.

As we know the area covered by elephant legs is more so less pressure is exerted but in case of pointed shoe the area covered is less so more pressure is exerted.

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A light wave travels through space at a speed of 3 x 108 m/s. If the wavelength of some light wave is 2 x10-3 m, what is the fre

kifflom [539]

Here is your answer

b) $\huge 1.5× {10}^{11} Hz$

REASON :

We know that

Velocity= Frequency× Wavelength

So,

Frequency= Velocity/wavelength

Here,

V= 3× 10^8 m/s

Wavelength= 2×10^-3 m

Hence,

Frequency= 3×10^8/2×10^-3

= 3/2 × 10^11

= 1.5× 10^11 Hz

HOPE IT IS USEFUL

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3 years ago

Canola oil is less dense than water, so it floats on water, but its index of refraction is 1.47, higher than that of water. When

kupik [55]

Answer:

therefore critical angle c= 69.79°

Explanation:

Canola oil is less dense than water, so it floats over water.

Given $n_{canola}= 1.47$

which is higher than that of water

refractive index of water $n_{water}=1.33$

to calculate critical angle of light going from the oil into water

we know that

$sinc= \frac{n_{water}}{n_{canola}}$

now putting values we get

$sinc= \frac{1.33}{1.47}$

c= $sin^{-1}(\frac{1.33}{1.47} )$

c=69.79°

therefore critical angle c= 69.79°

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3 years ago

Correct formula of Na(No3)2

ehidna [41]

Answer:

NaNO3.

Explanation:

The Na ion has one positive charge and the NO3 ion has one negative charge so the correct formula is NaNO3.

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3 years ago

Who speaks the line "Lord, what fools these mortals be"?

ivanzaharov [21]

The answer is D.Puck.

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2 years ago

Estimate the number of atoms in 1 cm^3 of a solid

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Avogadro's number: 6.02 x 10^23 atoms is present in 1mol of a solid (i.e. 22, 400 cm3)

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3 years ago

Pressure due to a heel of the pointed shoe is greater than the pressure of the elphant legs​

Pressure due to a heel of the pointed shoe is greater than the pressure of the elphant legs