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2 years ago

Will an object with a density of 1.05 float or sink? Explain.

Physics

2 answers:

muminat2 years ago

6 0

Float, its to light there's not enough denisty to bring it down

Leni [432]2 years ago

5 0

It will sink because the density of water is 1. And if the objects density is 1.05 its more dense than water, so therefore it will sink.

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The electric field must be zero inside a conductor in electrostatic equilibrium, but not inside an insulator. It turns out that

pav-90 [236]

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The permittivity of rubber is $\epsilon = 8.703 *10^{-11}$

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3 years ago

Light is incident on the left face of an isosceles prism; with an apex angle of 49o, such that the light exiting the right face

Sunny_sXe [5.5K]

Answer:

$\mu = 1.645$

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By Snell's law we know at the left surface

$\theta_i = 19^o$

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$\mu_2 = \mu$

now we have

$1 sin19 = \mu sin\theta_r$

$0.33 = \mu sin\theta_r$

now on the other surface we know that

angle of incidence = $\theta_r'$

$\theta_e = 90$

so again we have

$\mu sin\theta_r' = 1 sin90$

so we have

$\theta_r = sin^{-1}\frac{0.33}{\mu}$

$\theta_r' = sin^{-1}\frac{1}{\mu}$

also we know that

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