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Serjik [45]
3 years ago
9

Based on Kepler's work, which best describes the orbit If a planet around the Sun?

Physics
1 answer:
krek1111 [17]3 years ago
7 0

Answer:

an ellipse with the Sun at one focus  or D

Explanation:

Answer for edgenuity

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A liquid is a matter that neither has a fixed shape but fixed volume...in college really need to know this.

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Two balls are at the same height and released at the same time. One ball is dropped and hits the ground 5s later. The 2nd ball i
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The second ball hits at the same time.

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Two forces F1 = -7.90i + 5.40j and F2 = 9.00i + 7.60j are acting on an object with a mass of m = 6.30 kg. The forces are measure
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A barbell consists of two small balls, each with mass m at the ends of a very low mass rod of length d. The barbell is mounted o
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The total angular momentum of the system about point B is L=m_1r_1\omega_1+m_2r_2\omega_2

Angular momentum, also known as moment of momentum or rotational momentum, is the rotating counterpart of linear momentum.

A rigid object's angular momentum is defined as the product of its moment of inertia and its angular velocity. If there is no external torque on the object, it is analogous to linear momentum and is subject to the fundamental constraints of the conservation of angular momentum principle. The vector quantity angular momentum It is derived from the expression for a particle's angular momentum.

Given,

mass of ball 1 = m1

m₂ mass of ball 2=m2

v₁ is the velocity of ball=r₁ω₁

v₂ is the velocity of ball 2=r₂ω₂

The total angular momentum is given as;

V_{total}=r_1\omega_1+r_2\omega_2\\\\L=m_1r_1\omega_1+m_2r_2\omega_2

Hence the total angular momentum  will be L=m_1r_1\omega_1+m_2r_2\omega_2

To learn more about angular momentum refer here

brainly.com/question/29512279

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A net force of 3000 N is accelerating a 1200 kg elevator upward. If the elevator starts from rest, how long will it take to trav
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F = net force acting on the elevator in upward direction = 3000 N

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a = acceleration of the elevator = ?

Acceleration of the elevator is given as

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a = 2.5 m/s²

v₀ = initial velocity of the elevator = 0 m/s

Y = displacement of the elevator = 15 m

t = time taken

Using the kinematics equation

Y = v₀ t + (0.5) a t²

15 = (0) t + (0.5) (2.5) t²

t = 3.5 sec

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