1answer.
Ask question
Login Signup
Ask question
All categories
  • English
  • Mathematics
  • Social Studies
  • Business
  • History
  • Health
  • Geography
  • Biology
  • Physics
  • Chemistry
  • Computers and Technology
  • Arts
  • World Languages
  • Spanish
  • French
  • German
  • Advanced Placement (AP)
  • SAT
  • Medicine
  • Law
  • Engineering
Eva8 [605]
3 years ago
13

He discovered that the orbits of planets are ellipses.

Physics
2 answers:
bezimeni [28]3 years ago
6 0

Answer:

Kepler

Explanation:

Kepler discovered that the orbits of planets are ellipses.

Alenkinab [10]3 years ago
6 0

<em>Johannes Kepler</em>, the Polish mathematician, discovered that the planetary orbits ARE most likely ellipses.

Isaac Newton, the English Physicist/mathematician, discovered that the planetary orbits HAVE TO BE ellipses.

You might be interested in
A(n) 83 kg fisherman jumps from a dock into a 139 kg rowboat at rest on the West side of the dock. If the velocity of the fisher
Anna71 [15]

here we can say that there is no external force on fisherman and dock

so here we will use momentum conservation theory

As per momentum conservation

initial momentum of fisherman + boat = final momentum of fisherman + boat

m_1v_{1i} + m_2v_{2i} = m_1v_{1f} + m_2v_{2f}

now we will have

83(3.1) + 139(0) = 83 v + 139 v

257.3 = 222v

v = 1.16 m/s

so the speed of boat and fisherman will be 1.16 m/s

3 0
3 years ago
Astronauts wear liquid cooled space suits to keep their body temperature moderate. One
Anton [14]

Answer:

D. Because they are using space technology on a shirt so people can wear it on earth as well

6 0
2 years ago
You have a series circuit powered by a 9V battery. If you double the amount of
ss7ja [257]
It gets 2 times weaker
5 0
2 years ago
Read 2 more answers
Two identical cars A and B are at rest on a loading dock with brakes released. Car C, of a slightly different style but of the s
Nadusha1986 [10]

Answer:

Explanation:

Let the velocity after first collision be v₁ and v₂ of car A and B . car A will bounce back .

velocity of approach = 1.5 - 0 = 1.5

velocity of separation = v₁ + v₂

coefficient of restitution = velocity of separation / velocity of approach

.8 = v₁ + v₂ / 1.5

v₁ + v₂ = 1.2

applying law of conservation of momentum

m x 1.5 + 0 = mv₂ - mv₁

1.5 = v₂ - v₁

adding two equation

2 v ₂= 2.7

v₂ = 1.35 m /s

v₁ = - .15 m / s

During second collision , B will collide with stationary A . Same process will apply in this case also. Let velocity of B and A after collision be v₃ and v₄.

For second collision ,

coefficient of restitution = velocity of separation / velocity of approach

.5 = v₃ + v₄ / 1.35

v₃ + v₄ = .675

applying law of conservation of momentum

m x 1.35 + 0 = mv₄ - mv₃

1.35 = v₄ - v₃

adding two equation

2 v ₄= 2.025

v₄ = 1.0125 m /s

v₃ = - 0 .3375  m / s

3 0
3 years ago
The 3rd question i need answers​
jeka94

Answer:

\sf{B. Two  \: quantities \:  can \:  have \:  the  \: same \:  dimensions \:  but  \: different  \: unit. }

4 0
2 years ago
Other questions:
  • A 40% pressure drop across an oil filter screen indicates that?
    9·1 answer
  • Explain how you could find out whether of not an unknown liquid is water
    11·2 answers
  • Will is a scientist. He’s designing a spacecraft that would allow people to land on Mars. Will’s mass on Earth is 75 kilograms.
    6·2 answers
  • PLEASE HURRY!!!!! 25 POINTS !!!! Sebastian wants to write the chemical formula for phosphorus tetraoxide. He identifies the chem
    8·2 answers
  • The Eiffel tower in Paris is 300 meters tall on a cold day (T = -24 degrees Celsius), what is its height on a hot day when the t
    12·1 answer
  • What are electromagnetic waves and how do they travel?<br> Please help!!!
    14·1 answer
  • What is a middle c site
    9·1 answer
  • Consider the air moving over the top of the light bulb. The streamlines near the bulb will be squeezed together as the air goes
    10·1 answer
  • Which of the following is NOT a characteristic of a state?
    12·2 answers
  • 7. A car is travelling along a road at 30 ms when a pedestrian steps into the road 55 m ahead. The
    12·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!