2 years ago

Can any one give me a amazon code i will repay you. plz i am trying to buy my mom somin off amazon

Physics

1 answer:

Alexandra [31]2 years ago

4 0

Answer:i have none but good luck also this is a learning site ;-;

Explanation:

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How many coulombs of charge do 50 * 10^31 electrons possess

Angelina_Jolie [31]

Quantity of Charge , Q = ne
Where n = number of electrons
e = charge on one electron = -1.6 * 10 ^-19 C.
n = 50 * 10^31 electrons

Q = (50 * 10^31)*( -1.6 * 10 ^-19 ) = -8 * 10^13 C.

Note that the minus sign indicates that the charge is a negative charge.

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2 years ago

Match the particles with their characteristics,

In-s [12.5K]

Positive charge=proton
Negative charge=electron
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Objects are lighter on the moon than they are on earth. if an object A weighs 25lbs on the Moon and another object B weighs 25 N

solong [7]

Answer:

a. Object A

Explanation:

The mass of an object implies the quantity of matter in it, while the weight is the amount of gravitational force applied on an object.

The object A has a mass of 25 lbs, but object B on the earth has a weight, W, of 25 N.

So that,

For object A on the moon, mass = 25 lbs

For object B on the earth, W = 25 N,

W = m x g

25 = m x 10 (g = 10 m/ $s^{2}$ )

m = $\frac{25}{10}$

= 2.5 lbs

Mass of object B is 2.5 lbs.

Therefore, the mass of the object A is more than that of B.

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2 years ago

Convert the following quantities <br><img src="https://tex.z-dn.net/?f=25m%20%7B%7D%5E%7B2%7D%20%20%5C%3A%20into%20%5C%3A%20cm%2

Bad White [126]

Answer:

$\rm 250000 \; cm^2$

Explanation:

Refer to the attachment.

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2 years ago

"a musical tone sounded on a piano has a frequency of 261.6 hz and a wavelength of 1.31 m. what is the speed of the sound wave

Andreyy89

To solve this question, we use the wave equation which is:
C=f*λ
where:
C is the speed;
f is the frequency;
λ is the wavelength
So in this case, plugging in our values in the problem. This will give us:
C = 261.6Hz × 1.31m
= 342.696 m/s is the answer.

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2 years ago

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