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pishuonlain [190]
3 years ago
13

Losing or gaining electrons makes an atom a/an: A. Electron B. Charged atom. C. Proton. D. Ion​

Physics
1 answer:
marissa [1.9K]3 years ago
7 0

Answer:

d

Explanation:k

it is

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podryga [215]
Whatever phase of the moon Ike sees, he can expect to see
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3 years ago
Find the intensity of electromagnetic radiation at the surface of the sun (radius r=R=6.96×105kmr=R=6.96×105km). Ignore any scat
alisha [4.7K]

Answer:

I = 4.46*10^{16}W/m^2.

Explanation:

Intensity I of the electromagnetic radiation is given by

I = \dfrac{P}{4\pi r^2},

where r is the distance from the EM source (the center of the sun, in our case), and P is the power output of the sun and it has the value

P = 3.9 *10^{26}W.

Since the radius of the sun in meters is r = 6.96*10^8km, the intensity I of the electromagnetic radiation at the surface of the sun is

I = \dfrac{3.9*10^{26}W}{4\pi (6.96*10^8m)^2}\\\\\boxed{ I = 4.46*10^{16}W/m^2}

The intensity of the electromagnetic radiation at the surface of the sun is I = 4.46*10^{16}W/m^2.

7 0
3 years ago
according to newton's law of universal gravitation, in which of the following situations does the gravitational attraction betwe
Alex17521 [72]

Explanation:

The force acting between two masses is given by :

F=G\dfrac{m_1m_2}{d^2}........(1)

Where

G is the universal gravitational constant

m_1\ and\ m_2 are masses

d is the distance between two masses

It is clear from equation (1) that the gravitational attraction between the bodies always increases if the masses of bodies increases and when the separation between masses decreases.

So, the correct answer is "the masses increase, and the distance between the centers of mass decreases". This is because the force of gravitation is directly proportional to the masses and inversely proportional to the separation.

4 0
3 years ago
What is the correct water depth for an echo travel time of 6 seconds? (for the purposes of this exercise, assume pressure and te
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Distance = 340 m/s * 6 seconds
Distance = 2,040 meters deep
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4 years ago
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