Which theory proposes that the moon was a passing asteroid pulled into orbit by Earth's gravity?

Answers

Answer 1
Answer: The correct answer to the question above is the capture theory. The capture theory proposes that the moon was a passing asteroid pulled into the orbit by the Earth's gravity. It says that the moon was originally orbiting the sun, not the Earth.
Answer 2
Answer:

Answer:

Capture Theory

Explanation:

According to capture theory, moon is passing space rock-asteroid which was captured into the orbit around the Earth due to gravity. Other planets have moons which are captured asteroid like Mars has two moons-Phobos and Deimos. Jupiter has many moons which are captured asteroids. Capture theory explains the difference in the composition of Earth and the moon.


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an electron in a mercury atom changes from energy level b to a higher energy level when the atom absorbs a single photon with an energy of 3.06eV. Determine the energy of the photon, in joules.
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What do an electron and a neutron have in common? Each particle has a mass of 1 amu.Each particle exists inside an atom. Each particle has an electrical charge.Each particle is located in the nucleus.
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A dart is thrown horizontally with an initial speed of 19 m/s toward point P, the bull's-eye on a dart board. It hits at point Q on the rim, vertically below P, 0.19 s later. (a) What is the distance PQ

Answers

Answer:

Explanation:

The dart will go forward horizontally with velocity of 19 m/s. It will also fall downwards with initial velocity of zero and gravitational acceleration of 9.8 m/s².

Distance PQ covered by the dart can be calculated using the following formula.

s = ut + 1/2 at²

u is initial velocity , a is acceleration and t is time.

Putting the values

s = 0 + 1/2 x 9.8 x .19²

= .1769 m

= 17.69 cm.

A person throws a tennis ball 6 m/s straight up. How long does it take for it to come back to their hand?

Answers

Answer

1.2245 s


Explanation

Using the Newton's law of linear motion,

v = u + gt


where v ⇒ Final velocity

            u ⇒ initial velocity,

             t ⇒ time to reach maximum height.

             g ⇒ acceleration due to gravity.

v = u + at

v = 0 m/s

g = -9.8 m/s²  (negative because the velocity is decreasing)

0 = 6 + -9.8t

9.8t = 6

t = 0.612244898 s

This is the time to reach maximum height. It will take the same time to come back to the hand.

so total time = 0.612244898 × 2

                      = 1.2245 s


Best Answer: BY v = u -gt=>0 = 6 - 9.8 x t=>t = 0.61 secThus time it take to come back to hand (T) = 2t = 1.22 secLol I hope this helps because I had funning helping you XD

Air pollution affects everyone equally. true or false

Answers

This is false. People with asthma or allergies are affected more than people without those conditions. 
False. There are people in different locations that do not use anything to pollute the air, so they have less pollution. There is also people who have asthma or react to pollution. Hope this helped!

Karen shouts across a canyon and hears an echo 7.5 s later. how wide is the canyon? the speed of sound is 343 m/s. answer in units of m.

Answers

After Karen shouts, the sound wave of her voice travels across the canyon, it hits the walls, and then it comes back to Karen in a total time of t=7.5 s. If we call L the distance between Karen and the other side of the canyon (so, L is the width of the canyon), it means that the sound wave covers a distance of S=2L in this time.
Since the wave moves by uniform motion, we can use the usual relationship between space, time and velocity:
v= (S)/(t)= (2L)/(t)
where v=343 m/s is the speed of sound. Using this number, we can find L from the previous equation:
L= (vt)/(2)= ((343 m/s)(7.5 s))/(2)=1286 m
So, the canyon is 1286 meters wide.

An atom that gains or loses an electron has a net electric charge and is called a/na. proton.
b. ion.
c. electron.
d. neutron. user: which sentence best describes mass movement?
a. the steady pace of air bouncing off a mountain
b. the downhill movement of animals due to heavy snow in their normal home
c. the movement of particles within an atom
d. the downhill flow of soil and rock resulting from gravity

Answers

The answer for the first question is B. Ion.

The answer would be B. Ion.

Does a stick of dynamite contain force?

Answers


No.  Force isn't something you can enclose in a box, an envelope,
or a bottle.

A stick of dynamite contains some amount of a chemical compound which,
when triggered by enough heat or shock, undergoes a chemical reaction
that proceeds very rapidly, and generates a large quantity of gases before
the gases can dissipate.  This creates very high pressure around the reaction,
and it's this pressure in a small volume that exerts great force for a very short
time.     The whole process is often described as an "explosion".