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Vladimir [108]
3 years ago
15

What modifications did Kepler make to Copernicus’s model? Select two options.

Physics
1 answer:
victus00 [196]3 years ago
8 0

The complete question is

What modifications did kepler make to copernicus’s model? check all that apply. planetary orbits are elliptical. planets closer to the sun move faster. planets spin in an epicycle while orbiting earth. venus has phases due to its orbiting of the sun. earth’s rotation causes the rising and setting of the sun.

Answer:

Planetary orbits are elliptical.

Planets closer to the Sun move faster.

Explanation:

The first option is based on the first law that states that the planets orbit the sun in ellipses, with the sun at one focus of the ellipse.

The second option is based on the third law that states that the square of the time of revolution about the sun is directly proportional to the cube of the mean radius of orbit of the planet.

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The pressure of liquid varies as per<br>its depth​
Slav-nsk [51]

Answer:

Yes.

Explanation:

The pressure varies as per the depth of the container

4 0
3 years ago
What element would I make if I added 2 protons to Lithium (Li)?
Law Incorporation [45]

Answer:

Lithium Fluoride

One lithium atom can combine with one fluorine (F) atom. Together, they make the formula LiF. Fluorine has seven electrons of it's own. Lithium gives up its one electron to make both atoms happy.

Explanation:

4 0
3 years ago
2. Can you place three forces of 5g, 6g, and 12g so they are in equilibrium. Justify your answer.
Bond [772]

Answer:

We cannot place three forces of 5g, 6g, and 12g in equilibrium.

Explanation:

Equilibrium means their sum must be zero.

Here the forces are 5g, 6g, and 12g.

For number of forces to be in equilibrium the magnitude of largest vector should be less than sum of the magnitude of other vectors.

Here

        Magnitude of largest force = 12 g

        Sum of magnitudes of other forces = 5g + 6g = 11g

       Magnitude of largest force >   Sum of magnitudes of other forces

So this forces cannot form equilibrium.

We cannot place three forces of 5g, 6g, and 12g in equilibrium.

4 0
3 years ago
A circular flat coil that has N turns, encloses an area A, and carries a current i has its central axis parallel to a uniform ma
bogdanovich [222]

Answer:

Torque on the coil will be ZERO

Explanation:

As we know that the magnetic moment of the closed current carrying coil is always along its axis and it is given as

M = N i A

now we know that magnetic field is also along the axis of the coil so here as we know the equation of torque given as

\tau = \vec M \times \vec B

so we have

\tau = M B sin0

\tau = 0

5 0
4 years ago
Brent is a crime scene investigator. Which two documents must he attach to every item of evidence?
Law Incorporation [45]

Answer:

1. evidence log

2. chain of custody

Explanation:

plato

5 0
3 years ago
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