All categories

3 years ago

What is true about a circular orbit?

1 answer:

8 0

-- The speed of the orbiting body is the same at every point in its orbit.

-- Since a circle is the ellipse with coincident foci, the central body is
at the center of the circular orbit.

-- The radius of the circular orbit drawn from the central body to the
orbiting body sweeps out the same amount of area in every same
amount of time.

-- The forces of attraction between the central body and the orbiting body
may be electrostatic, magnetic, or gravitational.

-- The circular orbit never occurs in nature. In the case of TV satellites
that appear 'fixed' in the sky, their orbits must constantly be adjusted to
maintain circularity and prevent them from drifting off station..

You might be interested in

In what scientific study did scientists discover that when atoms split they _________.

Shtirlitz [24]

Answer:OOF

Explanation:

6 0

3 years ago

The gravitational force between two objects is 2000 N. The mass of each object is reduced to one-third of its original mass.

Kisachek [45]

The answer is B. The distance must be one-third the original distance.

7 0

4 years ago

Read 2 more answers

For a GaAs, the Fresnel reflection coefficients for uncoated facets are 0.32 and a 10 cm. Determine the lasing threshold conditi

bazaltina [42]

Answer:

lasing threshold condition is 32.78 cm

Explanation:

given data

uncoated facets R = 0.32

a = 10 cm

length L = 500 um = $500*10^{-4}$ m

to find out

lasing threshold condition

solution

we know lasing threshold condition formula that is

lasing threshold = a - $\frac{1}{2L}$ ln $\frac{1}{R^2}$ ..........1

put here all value in equation 1 we get

lasing threshold = a - $\frac{1}{2L}$ ln $\frac{1}{R^2}$

lasing threshold = 10 - $\frac{1}{2(500*10^{-4}}$ ln $\frac{1}{0.32^2}$

lasing threshold = 32.78

so lasing threshold condition is 32.78 cm

6 0

3 years ago

An important step toward a more complete understanding of blackbody

artcher [175]

Answer:

The correct option is;

C. Electrons can act as both waves and particles

Explanation:

The quantum theory theory developed by Max Planck established that effect of radiation on a blackbody can be explained by the fact that energy can exhibit physical characteristics which implies that energy can have both wave-like and physical characteristics

With Planck's law, light and electrons are known as having wave particle duality, that is they can act as both waves and particles.

4 0

3 years ago

Read 2 more answers

What effect or effects would be most significant if the Moon's orbital plane were exactly the same as the ecliptic plane?

Lilit [14]

Answer:

c. Solar eclipses would be much more frequent.

Explanation:

The ecliptic plane is the apparent orbit that the sun describes around the earth (although it is the earth that orbits the sun), is the path the sun follows in earth's sky.

A solar eclipse occurs when the moon gets between the earth and the sun, so a shadow is cast on the earth because the light from the sun is blocked.

The reason why solar eclipses are not very frequent is because the moon's orbital plane is not in the same plane as the orbit of the earth around the sun, but rather that it is somewhat inclined with respect to it.

So if both orbits were aligned, the moon would interpose between the sun and the earth more frequently, producing more solar eclipses.

So, if the moon's orbital plane were exacly the same as the ecliptic plane solar eclipses would be more frequent.

the answer is: c.

8 0

4 years ago