Law of Attraction Warning !

Astrologers claim that your personality traits are determined by the positions of the planets in relation to you at birth. Scientists argue that these gravitational effects are so small that they are totally insignificant. Compare the gravitational attraction between you and Mars to the gravitational attraction between you and your 70kg doctor at the moment of birth, if the doctor stands .5m away. (Note: Mmars 0 6.42*10exp.23kg, D e to m = 7.83*10exp.10m. This is the average distance between earth and Mars. This distance varies as the two planets orbit the sun.)
Ignore the 0 (typo)
Check you answers again because I mean ignore the 0 in the Note after mars.

gravitational force between me and another object is proportional to that object’s mass divided by the square of the distance between us.

if
Mm = mass of mars
Md = mass of doctor
Rm = distance of mars
Rd = distance of doctor
then the ratio of the force from mars to the force from the doctor is
Mm/Rm^2 * Rd^2/Md ~ .37

the reciprocal of this is ~2.7, so the force between the doctor and me is almost three times the force between me and mars

(my mass doesn’t matter because it appears in both the forces and cancels when I divide them)

Related Blogs

• Top 10 Risks In Mars Mission | CrunchPost
• The Dark Matter Mystery: Most Of The Universe Is Missing | ✰.net
• Offshore Wind » Risø DTU receives DKK 20 million to develop vertical axis wind turbine (Denmark)
• How the “optical force” can move beyond the silicon chip-/transistor-scale and bring about unlimited, instant travel throughout space-time | Look For Edu University
• Do You Have The Personality Traits To Succeed In A Mlm Business Online? | Underground Research Network
• TECH4BUZINESS : 5 Personality Traits of Happy Entrepreneurs – Young Entrepreneur | Tech4buziness – Eng
• Great Mathematicians
• » 21st Century Mission – Tame Gravity!
• Earth’s a Star: MESSENGER Spacecraft Captures the Earth and the Moon | Alternative Energy Mutual Funds
• Gravitational Lensing Effects on the Baryonic Acoustic Oscillation Signature in the Redshift-Space Correlation Function [Replacement] « Vox Charta

The hydrogen atom contains a proton and an electron seperated by about 5.0 x 10(-11) m. (the (-11) is supposed to be to the -11 power.)The mass of a proton is approx 1.7 x 10(-27) kg. (the (-27) means to the power of -27 also.) The mass of the electron is approx 9.0 x 10(-31)kg. (same thing as before(to the power)) The charge on a proton is 1.6 x 10(-19)C (same thing as before) and the charge on an electron is -1.6 x 10(-19) C.
Newton’s law of universal gravitation:
F(g)=(6.67 x 10(-11)power) x m1 x m2
(all this equation divided by r(2) (r squared)
Coulombs law:
F(e)=(9 x 10 (9) power) x q1 x q2
(all this equation divided by r(2) (r squared)
a) Use newtons law of universal gravitation to calculate the gravitational force between the electron and proton in the hydrogen atom.
b)Use Coulombs law to determine the force of attraction between the 2 particles.
c)Calculate the ratio between the electric force and the gravitational force. How import. are gravit. forces in this case?

Come on now this is a common sample problem to show you how the Coulomb force is so much LARGER than the gravitational force. You should do it yourself. It’s a matter a plugging in the Numbers in Coulomb’s Eq and then into Newton’s and forming a ratio.

It will show you that Gravitational forces are unimportant when calculation electrical forces between charged particles

Our galaxy, the Milky Way, contains approximately 4.02×10^11 stars with an average mass of 2.49×10^30 kg each. If the Andromeda Galaxy, our nearest neighbor, contains roughly the same number of stars and is 2.26×10^43 meters away, what is the gravitational force of attraction between the two galaxies?

I used the Law of Universal Gravitation.. but i’m getting different numbers everytime i punch them into my calculator.. please help?

Thanks!!

Assuming the average mass of stars in Andromeda is the same as the Milky Way
F = G(nm)^2R^2
F = 6.673 x 10^-11 x (4.02 x 10^11 x 2.49 x 10^30)^2/(2.26 x 10^43)^2 = 1.30 x 10^-13 N

Apparently, according to the law of universal gravitation, the force of attraction between two objects will drop to zero when the distance between them is infinite. In the equation g=Gmm/r(squared) r is in the denominator, so when the distance is infinite g should have no value.

Actually,

F=G*m1*m2/r^2

when r -> infinity,
then F-> 0

if r becomes infinity then definitely F will become zero since all other things involved(G,m1,m2) are finite.

But infinity is not equal to zero in this equation.
zero=1/(infinity)

To bring up something previously mentioned without addressing its proper name/title..

e.g. A satellite and the mass it is orbiting have an attraction to eachother. Newtons law of universal gravitation can be used to find the attraction of ‘said’ masses.

Im not sure if that is grammatically correct any answers appreciated.

Yes you are correct.

Newton’s law of universal gravitation states that every particle in the Universe attracts every other particle. Write the exact mathematical expression for the force of attraction, and state in few words why this force of attraction is stronger between the moon and the earth than it is between you and your friend?
Thank you for answering my question! It made sense to me.

F = G (m1 . m2)/r^2

Since ‘G’ value is constant, I guess the reason here is my friend and I don’t have huge masses unlike moon and earth.

The hydrogen atom contains a proton and an electron seperated by about 5.0 x 10(-11) m. (the (-11) is supposed to be to the -11 power.)The mass of a proton is approx 1.7 x 10(-27) kg. (the (-27) means to the power of -27 also.) The mass of the electron is approx 9.0 x 10(-31)kg. (same thing as before(to the power)) The charge on a proton is 1.6 x 10(-19)C (same thing as before) and the charge on an electron is -1.6 x 10(-19) C.
Newton’s law of universal gravitation:
F(g)=(6.67 x 10(-11)power) x m1 x m2
(all this equation divided by r(2) (r squared)
Coulombs law:
F(e)=(9 x 10 (9) power) x q1 x q2
(all this equation divided by r(2) (r squared)
a) Use newtons law of universal gravitation to calculate the gravitational force between the electron and proton in the hydrogen atom.
b)Use Coulombs law to determine the force of attraction between the 2 particles.
c)Calculate the ratio between the electric force and the gravitational force. How import. are gravit. forces in this case?

Come on now this is a common sample problem to show you how the Coulomb force is so much LARGER than the gravitational force. You should do it yourself. It’s a matter a plugging in the Numbers in Coulomb’s Eq and then into Newton’s and forming a ratio.

It will show you that Gravitational forces are unimportant when calculation electrical forces between charged particles.

According to the law of universal gravitation, the force of gravitational attraction increases directly as two masses increase, and decreases in proportion to the square of the distance between the two masses. What happens to the force of gravitational attraction between the two bodies of equal mass if:

The distance between the two objects is doubled?

Can anyone please provide an explanation as to how they found the answer. This should be easy for physics geeks. Just to let you know I suck at physics, so type like a baby types when explaining.

Dear Vulcan#3,
If all you are dealing with is a change of distance between two gravitationally attracted objects… then just deal with the change in distance! : If you double the distance (and the masses are unchanged) the grav. attrctn will be one-quarter as strong. It is the rule of inverse squares: Double the distance and the force is 1/4. Triple the distance and the force is 1/9. Halve the distance and the attraction is 4x as strong…
‘Hope this appropriately addresses your question.

My question pertains to Newton’s law of universal gravitation which states that every point mass is attracted by every other point mass. In other words, everything attracts itself. My body attracts the earth as the earth attracts my body. The atoms on each key on my keyboard are attracting each other to create a solid object.

What is this need for attraction? It’s almost as if the universe wished to be unified. I know that this "force of gravity" exists but can not understand what causes it to be. Einstein’s theory of spacetime is interesting but does not fully answer the question.

Anyone have any theories?

Most scientists blame gravity on the warping of 4D space-time according to general relativity. That’s bull. 4D space-time is merely a mathematical description of the effect of gravity; it says absolutely nothing about the cause.

300 years ago, Fatio and Lesage proposed a mechanism to explain the cause of gravity. They suggested that all of space is filled with a rarified gas of ultra-small and ultra-fast particles, which they called gravitons (not the same as the spin-2 gravitons of modern particle physics). They theorized that these gravitons bounce off of massive particles, imparting momentum to them. If a particle gets the same number of hits from all sides, there is no net force; but supposedly two massive particles can shade one another from the gravitions; then the gravitons push the two particles toward one another. That is the cause of gravity according to Fatio & Lesage.

Unfortunately, there are serious problems with that theory. For one thing, the massive particles would have to absorb some of the gravitons; otherwise they would not shade one another. If all of the force of gravity results from absorption of gravitons (which must be moving at least 20,000,000,000 times faster than light, the energy absorbed by the particles would double their mass in less than a picosecond.

VanFlandern proposed that the energy from absorbed gravitons is somehow transferred to scattered gravitons. He offers no clear description of how that energy is transferred. Slabinski calculated that, if VanFlandern is right, then for every one graviton that is absorbed, at least 10^20 must be scattered.

I have my own Fractal Foam Model of Universes, in which gravitons are ethereal pressure waves instead of particles. Massive particles are groups of etheral sheer waves. P-waves pass thru other p-waves with no effect; s-waves pass thru other s-waves with no effect; but when p-waves and s-waves meet, they exchange momentum. Because the momentum exchange varies according to the polarity relationship of the two s-waves, it can cause forces of both attraction and repulsion between particles without imparting significant energy to them. There is no need to transfer the energy of one p-wave to the other 10^20 p-waves.

Because of the exchange of momentum, s-waves attract or repel one another, depending on relative location and polartiy. In some cases, this causes pairs and groups of s-waves to orbit one another, accounting for the electric and nuclear forces and gravity.

Here is where i guessed .the numbers are the words i guessed. correct me if i got it wrong: According to the law of gravitation, all matter 1.pulls on all other objects. You won’t notice the 2. Attraction between you and your pen because 3. Mass is 4. Unbalanced for small objects. Without the resistance from air, all objects fall with the same 5. Acceleration, due to gravity. The force of gravity acts 6. Downward while the 7. normal force acts 8. Upward. When you stand on level ground, the normal force is equal to your 9. Weight. You do not accelerate because the forces acting on you are 10. balanced. Before you start moving, your 11. Inertia must be overcome.
That’s 11 questions i had to figure out. Please correct me if any of these are incorrect. thanks

Those all look fine except number 4 is probably wrong. Here are suggestions to consider.

1 exerts a force of attraction
2 force
3 attraction
4 insignificant

I am tired and did science almost a year ago, so get a second opinion from someone else.

newtons law of universal gravitation basically states that 2 objects exert a gravitational attraction to each other, the magnitude of the force is directly proportional to the product of the gravitational mass of the objects and inversely proportional to the square of the distance between the two objects..

and black holes are ultimately formed by gravity pulling a chunk of mass towards the surface of a star, and the internal pressure of the star pushing outward, as long as the two forces (gravity and pressure) remain balanced, a black hole will not form. Once the star stops emitting light, the star will also stop replacing the lost energy, resulting in a drop in internal pressure. Gravity outweighs the pressure inside at this point causing the star to collapse on it self..

but I have no idea how to apply Newtons law of universal gravitation to the formation of black holes..

If you want a quantitative description of what happens in and around a black hole, classical mechanics and Newton’s law of gravitation won’t cut it. You need general relativity. Unfortunately, that means a ton of math and physics that most physicists don’t get until grad school if ever.

u can also help me on some other questions =]
Newton’s Law of Universal Gravitation can tell us that the attraction between two objects depends on what two measurements?

Most stars are formed as gravity collapses a gas cloud. As it forms, the cloud forms a disk around it, and planets form from the disk?

You’ve answered your first question.

Newton’s law depends on the masses of the two objects and their distance apart.

1. Every object attracts every other object with a gravitational force
2. The force of attraction between the Sun and the planets is magnetic
3. The line from the Sun to a planet sweeps out equal areas in equal intervals of time

4.The force exerted by the Sun on the planets equals the force the planets exert on the sun.
Which two?

Thanks!

(1) and (4) are relevant to Newton’s Laws
2 is completely wrong
3 involves Keplers Law

I need help. His law states: Every object attracts every other object with a force that for any two objects is directly proportional to the mass of each object. The greater the masses, the greater the force of attraction between them. help plz!

It’s hard to give a simple explanation.
How about, The bigger they are the harder they fall…
The more massive an object is, the more gravity it has.
Often gravitational forces are described thusly – imagine the fabric of the universe as a large rubber sheet. set a sphere in the center and observe how much the sheet is indented. The larger the sphere, the larger the indentation. Now add some smaller spheres, and as you might imagine, they are drawn toward the center.
Of course there’s a whole lot more to it, but you need some serious math to get a handle on the equations.

Can you tell me those two measurements
thanks i would really appreciate it. if you can also tell me The tilt of axis and composition of Mercury Venus Earth Mars Jupiter Saturn Uranus Neptune and Pluto
thank you

gravitational force is:

F=G* (m1*m2)/r^2

this means that the force is a function of the masses of the two objects and the separation between the two.

according to newtons law of universal gravitation, the force of attractionbetweenany two masses is directly related to the ?

F=Gm1m2/r^2
G=6.62*10^-11

according to newton’s law of universal gravitation, the force of attraction between any two masses is directly related to the:

a. product of the two masses
b. velocity of the two masses
c. distance between the two masses
d. sum of the two masses

a) product of the two masses.

it has nothing to do with velocity (well, sorta, depending on your interpretation of relativity, (mass’ dependence on velocity) but it doesn’t really. don’t worry yourself over it.

the force of gravity is also inversely proportional to the square of the distance between the masses. For future reference.