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Fudgin [204]
2 years ago
8

How many universes out there?​

Physics
2 answers:
bonufazy [111]2 years ago
8 0
Only one but there are theories that there are more
Montano1993 [528]2 years ago
7 0

Answer:

onlu 1 universe

Explanation:

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Kepler’s third law states that for all objects orbiting a given body, the cube of the semimajor axis (A) is proportional to the
GarryVolchara [31]

Explanation:

Kepler’s third law states that for all objects orbiting a given body, the cube of the semimajor axis (A) is proportional to the square of the orbital period (P).

For each of our planets orbiting the Sun, the relationship between the orbital period and semimajor axis can be represented by the equation as:

P^2=kA^3

k is constant of proportionality

It is required to solve the above equation for k

k=\dfrac{P^2}{A^3}

8 0
3 years ago
1. Find the kinetic energy of a .023 kg bullet moving at 420 m/s.
love history [14]

Answer:

Correct answer: Ek = 2,028.6 J

Explanation:

Ek = m v²/2 = 0.023 · 220² = 0.023 · 176,400/2 = 2,028.6 J

God is with you!!!

8 0
2 years ago
Which statement accurately describes current electricity?
Colt1911 [192]

Answer:

C. It is caused by flowing negatively charged particles.

Explanation:

Current electricity is caused by flowing negatively charged particles. The negatively charged particles that are responsible for the flow of electricity are called electrons.

The force is equal at all points in the field as the field lines are parallel in a uniform field. So, negatively charged particles will move in the opposite direction to the current.

Hence, the correct answer is "C. It is caused by flowing negatively charged particles."

8 0
3 years ago
How does the sun's gravity and the earth inertia keep us orbiting in the solar system
scZoUnD [109]
<span>Inertia keeps us orbiting because any object with mass has the tendency to resist changes to their direction and speed of movement. Combine that with the interaction of the gravitational attraction of the sun, and that is what keeps Earth in orbit. The sun’s gravitational force is one that is proportional to Earth’s mass, and it acts in a way that is almost exactly perpendicular to Earth’s motion. This keeps Earth from spinning into the sun or far away from it.</span>
6 0
3 years ago
Which of the following is a small star that has reached the end of its stellar evolution?
Akimi4 [234]
D.) White Dwarf

It is the smallest star whose mass is approximately equal or greater than 1.4M
Here, M = mass of the Sun.

Hope this helps!
3 0
3 years ago
Read 2 more answers
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