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puteri [66]
3 years ago
5

What is electricity

Physics
1 answer:
fgiga [73]3 years ago
7 0
Electricity is a form of energy. Electricity is the flow of electrons. All matter is made up of atoms, and an atom has a center, called a nucleus. The negative charge of an electron is equal to the positive charge of a proton, and the number of electrons in an atom is usually equal to the number of protons. Hope this helped. ;)
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Consider the waves on a vibrating guitar string and the sound waves the guitar produces in the surrounding air. The string waves
tatiyna

Answer:

Frequency is the correct answer.

Explanation:

When a wave go from one medium to another medium then the velocity, wavelength and Amplitude changes. But there is no change on the frequency.

Here, The string and the surroundings air are two medium , from which the wave travels.

So, the wave has same frequency in both medium.

The correct answer is Frequency.

5 0
4 years ago
What is the momentum of a compact car that is 750 kg and is travelling 30 m/s?
MakcuM [25]
The formula for momentum is p = mv, where p is momentum, m is mass, and v is velocity.

To solve for p, plug in 750 kg for mass and 30 m/s for velocity. • is a multiplication symbol

p = mv
p = 750kg • 30m/s
p = 22500 kg•m/s
5 0
3 years ago
1. The 10-min unithydrograph for a 2.25 km2 urban catchment is given by:(a) estimate the run off hydrograph for a 10-min rainfal
vivado [14]

Answer:

A ) Find the direct runoff depth; d =V A 22,698 _ 2.25x106 =0.01m =1cm The above result shows that the given hydrograph qualifies as a unit hydrograph. .

Explanation:

Brainlyist

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3 years ago
Find the mean of set values 12g 9g 13g 12g 20g 17g 15g
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{\huge{\boxed{\mathcal{\green{Answer}}}}} \\ \frac{12 + 9 + 13 + 12 + 20 + 17 + 15}{7}  \\  =  \frac{98}{7}  \\  = 14 \\ {\huge{\boxed{\mathcal{\green{Hope \: it \: Helps}}}}}

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Giving 20 points and brainiest <br> But please help me
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Answer:

yeah, Do you want me to check your answers? Yes is correct

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