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Elan Coil [88]
3 years ago
9

9.

Physics
1 answer:
julsineya [31]3 years ago
8 0
I don’t know just needed points im sorry
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How does the ringing sound of a telephone travels from the phone to your ears?
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The "ringing sound" are actually the soundwaves travelling from the phone to your ears.
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White light is an _____________ mixture of all the colors.<br> a) observable b) unequal c) equal
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Answer:

unequal

Explanation:

White light is a combination of all colors in the color spectrum.

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A loop of wire is placed in a magnetic field such that it has a flux, LaTeX: \phi ϕ, through it. The loop is compressed so that
Juliette [100K]

Answer:

B'= 3.333 B

Explanation:

Lets take

Initial area = A

Magnetic field = B

The area after compression

A'=0.3 A

Magnetic field = B'

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Ф = B A

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B A = B' A'

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Which terms describe space debris that are small chunks of rock and debris smaller than 1 km?
Luden [163]

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3 years ago
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Estimate the acceleration due to gravity at the surface of Europa (one of the moons of Jupiter) given that its mass is 4.9×1022k
Taya2010 [7]

Answer:g=1.97 m/s^2

Explanation:

Given

mass of Jupiter is M=4.9\times 10^{22} kg

Density of Jupiter is same as Earth

density\ of\ Earth=density\ of\ Jupiter=5510 kg/m^3

mass=volume\times density

considering Jupiter to be sphere of radius r

M=\frac{4}{3}\times \pi r^3\times \rho

r^3=\frac{3M}{\rho \times 4\pi}

r^3=\frac{3\times 4.9\times 10^{22}}{5510\times 4\pi}

r=(\frac{3\times 4.9\times 10^{22}}{5510\times 4\pi})^{\frac{1}{3}}

r=1.28\times 10^6 m

acceleration due to gravity is given by

g=\frac{GM}{r^2}

g=\frac{6.67\times 10^{-11}\times 4.9\times 10^{22}}{(1.28\times 10^6)^2}

g=1.97 m/s^2

3 0
4 years ago
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