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
Irina18 [472]
2 years ago
7

What eccentricity value results in a circular orbit?

Physics
1 answer:
Oxana [17]2 years ago
7 0

Answer:

Zero

Explanation:

Given the equation of an ellipse:

\frac{x^2}{a^2}+\frac{y^2}{b^2}=1

The eccentrity of an ellipse is given by:

e=\sqrt{1-\frac{b^2}{a^2}}

For a circle, we have

a=b

Therefore the eccentricity of a circle is

e=\sqrt{1-\frac{1^2}{1^2}}=0

You might be interested in
How much gravitational force do two lead balls with a mass of 8 kilograms, the centers of mass of which are 17 cm apart, affect
Arisa [49]

Answer:

1.48×10⁻⁷ Newtons

Explanation:

From the question,

According to newton's law of universal gravitation.

F = Gmm'/r²........................ Equation 1

F = gravitational force, G = gravitational constant, m = mass of the first ball, m' = mass of the second ball, r = distance between the balls.

Given: m = m' = 8 kg, r = 17 cm = 0.17 m,

Constant : G = 6.67×10⁻¹¹ Nm²/kg²

Substitute these values into equation 1

F =  (6.67×10⁻¹¹×8×8)/(0.17²)

F = 1.48×10⁻⁷ N

7 0
3 years ago
Please tell me if this is Newton's first law, second, or third law of motion. There can be more than one of the same answer very
AfilCa [17]

Answer: Hope This Helps!

Explanation:

1: Newton’s first law of motion can explain how a magician pulls a tablecloth from underneath the dishes. A negligible horizontal force is applied during the process. As per Newton’s first law of motion, the dishes and glasses remain in their state of motion (rest); as a result, they remain undisturbed.

2: Newton's First Law of Motion is defined as "An object at rest and an object in motion will stay in motion with the same speed and in the same direction unless acted upon by an unbalanced force."In soccer, when the soccer ball is in the soccer field and it is not moving, that means that it is at rest and there is no force acting upon it. When there is a person that is ready to play soccer and wants to kick the ball and play, then the unbalanced force would be the power from the person's foot.

3: Newtons third law can explain, as the cannonball is pushed forwards by the expanding high-pressure gases created by the exploding gunpowder, it pushes back on these gases. The gases push back on the cannon itself, causing it to roll backwards. Alternative answer: the cannon pushes forward on the cannonball. the reaction force is the cannonball pushing backwards on the cannon.

5 0
3 years ago
Though some self-report error may exist, surveys/interviews are useful in that they allow researchers to collect large amounts o
Leokris [45]
Definitely true, surveys and interviews aren’t flawless but you can collect lots of data from them
4 0
2 years ago
Use Snell's Law to solve the following:
azamat

Answer:

1.171

Explanation:

if n₁sinΘ₁=n₂sinΘ₂, then n₂=n₁sinΘ₁ / sinΘ₂;

n_2=\frac{1.5*sin45}{sin65}=\frac{1.5*0.707}{0.906} =1.1705

3 0
3 years ago
What type of material does not transfer heat well?
scZoUnD [109]
Insulators such as wood
6 0
3 years ago
Other questions:
  • Which of the following is not a unit used to measure pressure?
    10·2 answers
  • In an overhead camshaft engine, the lobes make direct contact with the 
    15·2 answers
  • A rocket of initial mass 115 kg (including all the contents) has an engine that produces a constant vertical force (the thrust)
    13·1 answer
  • Between any object and surface, the coefficient of static friction is _____ the coefficient of kinetic friction.
    14·1 answer
  • A 180 meter long train, travelling at a constant speed, is passing a car driving on an adjacent lane at a speed of 72 km/h. Know
    5·1 answer
  • Suppose someone gives you an alloy that is made of both zinc and nickel. In general, how do you think the physical properties of
    13·1 answer
  • Is a pair of sneakers a want or a need? Is the most expensive pair of sneakers a want or a need?
    5·1 answer
  • Which best describes Earth's magnetic pole?
    10·2 answers
  • What does weathering do?
    12·1 answer
  • 2. Classify Identify the following materials as thermal conductors or
    11·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!