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Anuta_ua [19.1K]
3 years ago
5

Determine the orbits period of the moon when the distance between the earth and the moon is 3.82 x 10 to the power of 8

Physics
2 answers:
777dan777 [17]3 years ago
6 0

Answer:

3820000000

Explanation:

Gennadij [26K]3 years ago
3 0
This statement is infact true
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S_A_V [24]

Answer:ur right I think

Explanation:

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Two objects attract each other gravitationally. if the distance between their centers decreases by a factor of 2, how does the g
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 <span>F = Gm1m2 / r^2 

if the masses are doubled then the force is increased by a factor of 4 


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3 years ago
A lamp has the shape of a parabola when viewed from the side. The lamp is centimeters wide and centimeters deep. How far is the
andrew-mc [135]

The question is not complete so i have attached it.

Answer:

The light source is 2 cm from the bottom of the lamp

Explanation:

From the attached image, we can see that the parabola opens up with its vertex at the origin.

Now, the standard form of equation for a parabola is:

x² = 4ay

Looking at the parabola in the attachment, the top right edge of the lamp has a coordinate of (12,18)

Thus, we have;

12² = 4a(18)

144 = 72a

a = 144/72

a = 2

Looking at the parabola again, the line of symmetry is at x = 0

Thus, axis of symmetry is at x = 0.

Thus, focus is at (0, 2)

So, if the light source is placed at the focus, the distance of the light source from the bottom of the lamp is 2 cm

8 0
3 years ago
A 31 cm tall object is placed in front of a concave mirror with a radius of 34 cm. The distance of the object to the mirror is 9
Setler [38]

Focal length is the distance between the center of a convex lens or a concave mirror and the focal point of the lens or mirror — the point where parallel rays of light meet, or converge. From the optics the focal length of the mirror can be defined as the radius of the mirror divided between two, or in other words, half the radius of the mirror.

f = \frac{R}{2}

f = \frac{34}{2}

f = 17cm

Therefore the focal length of the mirror is 17cm

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3 years ago
What is the tension on a rope holding up a 7.50 kg box?
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Answer:

B

Explanation:

F=m×g

=7.50×9.8 (standard gravitational force of earth)

=73.5N

7 0
2 years ago
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