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vaieri [72.5K]
3 years ago
8

What did johannes kepler contribute to the study of planets

Physics
2 answers:
kondaur [170]3 years ago
6 0

He collected detailed data that led to the proposal of the heliocentric model.

Nana76 [90]3 years ago
4 0
Johannes Kepler was a main stargazer of the Scientific Revolution known for detailing the Laws of Planetary Motion. A stargazer, obviously, is a man who contemplates the sun, stars, planets and different parts of room. Kepler was German and lived in the vicinity of 1571 and 1630. 
Despite the fact that Kepler is best known for characterizing laws in regards to planetary movement, he made a few other striking commitments to science. He was the first to discover that refraction drives vision in the eye and that utilizing two eyes empowers profundity recognition.
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A 92-kg fullback moving south with a speed of 5.8 m/s is tackled by a 110-kg lineman running west with a speed of 3.6 m/s. Assum
MariettaO [177]

Answer:

The speed and direction of the two players immediately after the tackle are 3.3 m/s and 53.4° South of West

Explanation:

given information:

mass of fullback, m_{x} = 92 kg

speed of full back, v_{x} = 5.8 to south

mass of lineman, m_{y} =110 kg

speed of lineman, v_{y} = 3.6

according to conservation energy,

assume that the collision is perfectly inelastic, thus

initial momentum = final momentum

                            P_{ix} = P_{x}'

                          m₁v₁ = (m₁+m₂)v_{x}'

                             v_{x}' = m₁v₁/(m₁+m₂)

                                  = (92) (5.8)/(92+110)

                                  = 2.64 m/s

                            P_{iy} = P_{y}'

                         m₂v₂ = (m₁+m₂)v_{y}'

                             v_{y}' = m₁v₁/(m₁+m₂)

                                  = (110) (3.6)/(92+110)

                                  = 1.96 m/s

thus,

v' = √v_{x}'²+v_{y}'²

  = 3.3 m/s

then, the direction of the two players is

θ = 90 - tan⁻¹(v_{y}'/v_{x}')

  = 90 - tan⁻¹(1.96/2.64)

  = 53.4° South of West

7 0
3 years ago
When particles vibrate so quickly they break free from their fixed positions, matter is:
Sonbull [250]
Condensing because when particles vibrate they condense.
8 0
3 years ago
Read 2 more answers
In space movies, spacecrafts explode and oxygen is needed for a fire to start. Why is it wrong? What would really happen?
Triss [41]

Answer:

Hey

The reason these "space movies" are wrong is because objects in "space" (not in a "space" craft) can't catch on fire because there is no air in "space".

6 0
3 years ago
What is domain theory? How does it explain how an electromagnet become magnetic
tresset_1 [31]
A magnet has two poles that is called north and sound the only information I can give
8 0
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Which molecule will undergo only london dispersion forces when interacting with other molecules of the same kind?
vfiekz [6]

Explanation:

London dispersion forces will form between non-polar molecules(polar ) that are symmetrical  like O₂, H₂, Cl₂ and noble gases.

  • The attraction here is because non-polar molecules becomes polar due to the constant motion of its electrons.
  • This lead to an uneven charge distribution at an instant.
  • A temporary  dipole or instantaneous dipole forms.
  • The temporary dipole can induce neighboring molecules to be distorted and forms dipoles as well.
  • This forms london dispersion forces.

Learn more:

Intermolecular forces brainly.com/question/10602513

#learnwithBrainly

7 0
3 years ago
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