Calculate Earth's Orbital Period Around the Sun | Gravitational Problem

  • Thread starter Thread starter Demin
  • Start date Start date
  • Tags Tags
    Gravitational
AI Thread Summary
The discussion revolves around calculating Earth's orbital period around the Sun using the given masses and distance. The relevant equation T^2 = kr^3 is mentioned, indicating a relationship between the orbital period and the radius. The user notes that they can derive the period by equating gravitational force to centripetal force, assuming a circular orbit. They express difficulty in using angular velocity (omega) since the answer needs to be in seconds rather than radians. The focus remains on applying gravitational principles to determine the orbital period accurately.
Demin
Messages
4
Reaction score
0

Homework Statement



Whats the Earth's orbital period around the sun if mE=5.98x10^24kg , mS =2x10^30kg,
r = 1.5x10^11


Homework Equations


T^2= kr^3


The Attempt at a Solution



i can figure out the period easily w/ 2 radii + 1 period
 
Physics news on Phys.org
Assuming that the orbit is circular, use grav force on Earth due to sun is equal to the centrpetal force. Also, T=2pi/omega.
 
cant use omega ,,answer has to be in sec not rads :(
 
That's why I'd given the relation between T and omega.
 

Thread 'Struggling to understand the concept of this question (ice cube in water optics question)'

TL;DR Summary: I came across this question from a Sri Lankan A-level textbook. Question - An ice cube with a length of 10 cm is immersed in water at 0 °C. An observer observes the ice cube from the water, and it seems to be 7.75 cm long. If the refractive index of water is 4/3, find the height of the ice cube immersed in the water. I could not understand how the apparent height of the ice cube in the water depends on the height of the ice cube immersed in the water. Does anyone have an...
View full post »
Thread 'Variable mass system : water sprayed into a moving container'

Thread 'Variable mass system : water sprayed into a moving container'

Starting with the mass considerations #m(t)# is mass of water #M_{c}# mass of container and #M(t)# mass of total system $$M(t) = M_{C} + m(t)$$ $$\Rightarrow \frac{dM(t)}{dt} = \frac{dm(t)}{dt}$$ $$P_i = Mv + u \, dm$$ $$P_f = (M + dm)(v + dv)$$ $$\Delta P = M \, dv + (v - u) \, dm$$ $$F = \frac{dP}{dt} = M \frac{dv}{dt} + (v - u) \frac{dm}{dt}$$ $$F = u \frac{dm}{dt} = \rho A u^2$$ from conservation of momentum , the cannon recoils with the same force which it applies. $$\quad \frac{dm}{dt}...
View full post »

Similar threads

Time taken for a planet to collide with the Sun
Replies
10
Views
803
Calculating Earth's Effective Spring Constant for its Orbit Around the Sun
Replies
8
Views
2K
A comet at its closest approach to the Sun
Replies
1
Views
2K
Velocity required to escape the solar system
Replies
15
Views
1K
What is the orbital period of an asteroid between Earth and Jupiter?
Replies
2
Views
2K
A 500 kg satellite experiences a gravitational force of....
Replies
4
Views
3K
Calculating orbital speed/period
Replies
1
Views
5K
Calculating the period of a low Earth satelite using Kepler
Replies
6
Views
2K
Where between the Moon and the Earth is the gravitational potential=0 ?
Replies
21
Views
3K
What is the period of the second planet in this exercise?
Replies
2
Views
1K

Hot Threads

Recent Insights

Back
Top