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Alex777 [14]
3 years ago
12

PLEASE HELPPP! :))))

Physics
1 answer:
serious [3.7K]3 years ago
3 0

Answer:

Jupiter Neptune moon Uranus

Explanation:

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Electrical energy is transformed into mechanical energy in a motor when the
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A certain radio wave has a frequency of 2.0 x 10^6 Hz. What is its wavelength?
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<span>1.    </span>Electromagnetic radiation are represented in waves. Each type of wave has a certain shape and length. The distance between two peaks in a wave is called the wavelength. This value is equal to the speed of light divided by the frequency.

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Wavelength = c/f
Wavelength = 3x10^8 / </span><span>2.0 x 10^6</span>

Wavelength = 150 m

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4 years ago
How far apart must two protons be if the electrical force acting on either one is equal to its weight on the earth's surface whe
BARSIC [14]

Answer:

G M m / R^2 = F   force of attraction for proton

K e^2 / r^2 = F     force of attraction between 2 protons

G M m / R^2 = K e^2 / r^2

r^2 = K e^2 R^2 / (G M m)

r^2 = 9E9 * (1.6E-19)^2 * (6.37E6)^2 / (6.67E-11 * 5.98E24 * 1.7E-27)

r^2 = 9 * 2.56 * 40.6 / (6.67 * 5.98 * 1.7) * 10^-19

r^2 = 1.38 * 10^-30

r = 1.17E-15 m

7 0
3 years ago
If the voltage in a wire is 10 volts, and the current is 5 amps, what is the resistance in the wire? Show work. Please put units
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Answer:2 ohm

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5 0
4 years ago
hallar un numero de dos cifras sabiendo que la suma de las cifras es 12 y que la primera de ellas es el triple de la segunda
Natali [406]

Answer:

93 o 39.

Explanation:

Hola.

En este caso, podemos resolver este problema por medio del planteamiento de las siguientes ecuaciones:

1. Definimos <em>x</em> como el primer dígito y <em>y</em> como el segundo, por lo tanto, como su suma es 12, escribimos:

<em>x</em> + <em>y</em> = 12

2. Ahora, dado que el primer dígito, x es el triple del segundo, escribimos:

<em>x</em> = 3 <em>y</em>

De este modo, podemos resolver para <em>y</em>:

3 <em>y</em> + <em>y</em> = 12

4 <em>y</em> = 12

<em>y</em> = 12 / 4

<em>y</em> = 3

Y para <em>x</em>:

<em>x</em> = 3 <em>y</em>

<em>x</em> = 3 * 3

<em>x</em> = 9

Así, el número puede ser 93 o 39.

¡Saludos!

3 0
3 years ago
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