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4 years ago

What is a lunar eclipse summary

Physics

2 answers:

gogolik [260]4 years ago

6 0

When Earth is between the sun and the moon. Hope I helped :)

Ksenya-84 [330]4 years ago

5 0

In simple terms, a lunar eclipse is basically when the moon looks darker than usual when it passes into the Earth's shadow. Hope this helps!

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The Earth's magnetic field is approximately 0.5 Gauss. What is the magnetic energy density of this field

ser-zykov [4K]

Answer:

The magnetic energy density is $E_B = 9.95 *10^{-4} \ J/m^3$

Explanation:

From the question we are told that

The earths magnetic field is $B = 0.5 \ Gauss$

Now

$1 \ Gauss \to 1 *10^{-4} \ T$

=> $0.5 \ Gauss \to x T$

$x = \frac{0.5 * 1*10^{-4}}{1}$

$x = B= 5.0 *10^{-5} \ T$

Generally the magnetic energy density is mathematically represented as

$E_B = \frac{B^2}{ 2 * \mu_o }$

Here $\mu_o$ is the permeability of free space with a constant value

$\mu_o = 4\pi * 10^{-7} N/A^2$

substituting values for equation above

$E_B = \frac{(5*10^{-5})^2}{ 2 * 4\pi * 10^{-7} }$

$E_B = 9.95 *10^{-4} \ J/m^3$

5 0

3 years ago

The fact that light travels at 300,000 km/s is a consequence of

Tresset [83]

<span>The fact that light travels at 300,000 km/s is a consequence of Energy Conservation
The particle that move with that kind of speed creates energy way faster than the particle that don't. Which means that it would require less effort to produce the energy,</span>

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4 years ago

An 80 kg person falls 60 m off a waterfall. what is her change in gpe

mixas84 [53]

80/60=
1.3333...........................................

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4 years ago

True or false? "The internal energy is the total energy stored in the bonds of a sample."

kotykmax [81]

trueExplanation:becuse true ihuorhileklduowelkhds

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3 years ago

Who was albert einstien describe his contributions???

olga nikolaevna [1]

Answer:

Albert Einstein was from Germany he was born theoritical physicist, from childhood only he loved mechanical toys, he was highly gifted in Mathematics, He was a world citizen and a scientific genius too. His contribution were:

1) he developed the theory of relativity

2) he also discovered the process of nuclear fission

3)he developed the quantum theory of specific heat

4)theory of stimulated emission, on which laser device technology is based

5) law of photoelectric effect

hope it helped you :)

6 0

3 years ago