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
finlep [7]
4 years ago
15

Suppose several particles are in concentric circular orbits under the influence of some centripetal component of force, the magn

itude of which depends on distance from the center of the motion. Each particle has a different orbital radius r and a corresponding period T.How does the force depend on r if T is proportional to sqrt(r) ?
How does the force depend on r if T is proportional to r^3/2 ?
How does the force depend on r if T is independent of r ?
Physics
1 answer:
olga55 [171]4 years ago
6 0

Explanation:

The centripetal force acting on a particle is given by :

F=\dfrac{mv^2}{r}

Since, v=r\omega

F=mr\omega^2

F\propto r\omega^2

Case 1.

If T\propto \sqrt{r}

Since, T=\dfrac{2\pi}{\omega}

So, \omega\propto \dfrac{1}{\sqrt{r} }

\omega^2\propto \dfrac{1}{r}

So, the force becomes,

F\propto r\times \dfrac{1}{r}

F is independent of r

Case 2.

If T\propto r^{3/2}

\omega\propto \dfrac{1}{r^{3/2}}

\omega^2 \propto \dfrac{1}{r^3}

So, F\propto r\times \dfrac{1}{r^2}

So, the force is inversely proportional to the square of radius.

Case 3.

If T is independent of r, the force will be directly proportional to the radius of orbit.

Hence, this is the required solution.

You might be interested in
Do electromagnetic waves travel with speed of light?
borishaifa [10]

Answer:

Yes

Explanation:

Especially the Seismic waves which travel faster than the others.

3 0
2 years ago
PLEASE HURRY!
olga nikolaevna [1]
The answer is B. Weak electrolytes are weak because they only partially dissociate into ions in water.

Hope this helps!
5 0
3 years ago
Read 2 more answers
What is lateral shift​
Pavlova-9 [17]

Answer:

Lateral Shift When a ray of light is incident on a glass slab, the emergent ray coming out of the slab will be parallel to the incident ray. The perpendicular distance between the direction of incident ray and emergent ray is called the lateral Shift. It is denoted by d.

Explanation:

Hope this helped :)

5 0
3 years ago
Read 2 more answers
A ball falls for 9.0 s increasing its kinetic energy by 2700. If the force acting on the ball in 6.0 N find the following quanti
Ivanshal [37]

Answer:

Change in velocity:  88 m/s

Average velocity:  50 m/s

initial velocity:  5.9 m/s

Final velocity:  94 m/s

Initial momentum:  3.6 kg m/s

Final momentum: 58 kg m/s

Explanation:

Acceleration = change in velocity / time

9.8 m/s² = Δv / 9.0 s

Δv = 88 m/s

Work = change in energy

Fd = ΔE

(6.0 N) d = 2700 J

d = 450 m

Average velocity = distance / time

v_avg = 450 m / 9.0 s

v_avg = 50 m/s

v − v₀ = 88 m/s

½ (v + v₀) = 50 m/s

Solving the system of equations:

v + v₀ = 100 m/s

2v = 188 m/s

v = 94 m/s

v₀ = 5.9 m/s

Use Newton's second law to find the mass:

F = ma

6.0 N = m (9.8 m/s²)

m = 0.61 kg

Find the momentums:

p₀ = (0.61 kg) (5.9 m/s) = 3.6 kg m/s

p = (0.61 kg) (94 m/s) = 58 kg m/s

6 0
3 years ago
Plsss help jdybgdykhbskyhdigbjs
Marta_Voda [28]
<h2>ANSWER: </h2><h2>_____________________________________</h2><h2>TYPES OF CHEMICAL REACTIONS:</h2>

There are two types of Reactions,

<h3>Endothermic Reactions: </h3>

Endothermic reactions are the type chemical reaction in which the reactants absorb heat energy from the surroundings. The energy of reactants is more than the energy of product

<h3>Exothermic Reactions: </h3>

Exothermic reactions are the type of chemical reactions in which release of energy takes place in the form of heat or light. In an exothermic reaction, energy is released. The energy of the products is less than the energy of the reactants.

<h2>_____________________________________</h2><h3 /><h3>In Question number 5,</h3>

The key word is "RELEASE". The reaction in which energy is released is the Exothermic reaction thus the Option B that is EXOTHERMIC REACTION is correct.

<h2>_____________________________________</h2><h3 /><h3>In Question number 6</h3>

It is asking that which process stores the energy that means it is asking which process undergoes endothermic reaction. The answer is Option C that is PHOTOSYNTHESIS is correct.

<h3>__________________________________________________</h3><h3>WHY PHOTOSYNTHESIS?</h3>

Because, sunlight is being absorbed during the reaction and according to the definition of endothermic reaction if heat is being absorbed it is termed as an endothermic reaction.

<h3>__________________________________________________</h3><h3 /><h3 />
7 0
3 years ago
Read 2 more answers
Other questions:
  • A visible violet light emits light with a wavelength of 4.00 × 10-7 m. Calculate the frequency of the violet light.
    10·2 answers
  • Which force requires contact?
    12·1 answer
  • In music, the note (A) above middle C has a frequency of 440 Hz. Suppose that note is played in the air where the velocity of so
    13·1 answer
  • A student makes a model of the sun-Earth system by swinging a ball around her head. Using this model, the student is trying to e
    10·2 answers
  • Organelles are the tiny structures in cells that carry out life processes. True or False
    6·2 answers
  • A 1.50 cm high diamond ring is placed 20.0 cm from a concave mirror with radius of curvature 30.00 cm. The magnification is ____
    14·1 answer
  • What is the most likely reason that Mendeleev placed tellurium before iodine?
    8·2 answers
  • A hockey puck with a mass of 0.17 kg is traveling to the right along the ice at 15 m/s. it strikes a second hockey puck with a m
    11·1 answer
  • Explain solar and lunar eclipse.with diagram.​
    11·2 answers
  • you want to describe the harmonic motion of a swing. you find out that it takes 2 seconds for the swing to complete one cycle. w
    9·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!