3 years ago

Answer!! will give brainliest

Physics

2 answers:

coldgirl [10]3 years ago

7 0

Answer:

charging by induction

Explanation:

Novay_Z [31]3 years ago

4 0

Answer:

charging by conduction

Explanation:

Lightning happens when the negative charges (electrons) in the bottom of the cloud are attracted to the positive charges (protons) in the ground

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Winnie the Pooh pushes a jug of with a force of 60 Newtons 3.5 meters. How much work did he do?

KonstantinChe [14]

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For him being such a fat bear, it would have taken alot of work

Explanation:

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3 years ago

Think about decorative strings of lights that you might see displayed for a holiday. If the lights are on a series circuit, what

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That bulb will break insise

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4 years ago

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

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

=> $0.5 \ Gauss \to x T$

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

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Generally the magnetic energy density is mathematically represented as

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

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

substituting values for equation above

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

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

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3 years ago

The field around a solenoid is similar to the field around a bar magnet.<br><br> true or false?

OlgaM077 [116]

The answer would be true :)

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In order to move a bag of dog food across a 10 meter room, you apply 20 newtons of force. How much work was done?

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The work done is calculated by multiplying the Force by the distance. So, 10x20 = 200 joules.

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3 years ago

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