Physics, 03.04.2020 00:38 onewaydemon

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

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.

Answers: 2

Show answers

Answers

Answer from: hamilclips6805

Kepler made below modifications :

Planetary orbits are elliptical.

Planets closer to the Sun move faster.

Explanation:

Copernicus proposed Heliocentric model of the universe. This model suggested that all planets, stars including the Earth revolve around the Sun.

He also said that stars are still in the universe. Their daily motion that we see from the Earth is because of the continuous rotation of the Earth.

As per Copernicus, Earth takes spherical path around the Sun. This concept was later modified by Kepler.

Kepler defined the exact orbit path of the Sun. He proposed Laws Of Planetary Motion. These laws explains the three laws that planets orbit obey.

Kepler suggested that planets move in elliptical orbits around the Sun and those which are near to the Sun move faster.

Answer from: sweetbee633

1, and 2 on Edge nuity just took the test

Explanation:

Answer from: Quest

a) electrical > light, sound, and thermal< < < <

) the mechanical energy of the firefighter moving.< < < < a) electrical > light, sound, and thermal< < < <

c) both a and b.

Answer from: Quest

force is based upon mass and acceleration.the statement is not always true.

it can be explained from newton's second law of motion.

as per newton's second law of motion the rate of change of momentum is directly proportional to the applied force and takes place along the direction of force.

mathematically it can be written as -

$f\alpha \frac{dp}{dt}$

⇒ $f= k \frac{dp}{dt}$

here k is the proportionality constant whose value is 1.

$f=\frac{dp}{dt}$

$f= \frac{d[mv]}{dt}$

$f= m\frac{dv}{dt} +v\frac{dm}{dt}$

$f=ma+v\frac{dm}{dt}$ [a is the acceleration=dv/dt]

hence we see that force not only depends on mass and acceleration but also on velocity and rate of change of mass. force f will depend on mass and acceleration only when mass is constant.

hence the statement that force is based upon mass and acceleration is false.

Another question on Physics

Physics, 22.06.2019 05:00

At time t=0, a particle is located at the point (3,6,9). it travels in a straight line to the point (5,2,7), has speed 8 at (3,6,9) and constant acceleration 2i−4j−2k. find an equation for the position vector of the particle.

Answers: 2

Answer

Physics, 22.06.2019 10:00

Need people build a dam to create a reservoir that supplies water a nearby city needs. describe two ways this action will likely affect the water cycle in the local environment. (5 points) worth 20 points

Answers: 1

Answer

Physics, 22.06.2019 10:00

Asap and show ! a 14 kg rock starting from rest free falls through a distance of 5.0 m with no air resistance. find the momentum change of the rock caused by its fall and the resulting change in the magnitude of earths velocity. earth mass is 6.0 * 10^24 kg. show your work assuming the rock earth system is closed.

Answers: 2

Answer

Physics, 22.06.2019 20:00

How are positive ions different from neutral atoms

Answers: 1

Answer

You know the right answer?

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

Planetary...

Questions