Table of Contents
How do you figure out gravitational pull?
Find out how to calculate gravitational forces We can do this quite simply by using Newton’s equation: forcegravity = G × M × mseparation2 . Suppose: your mass, m, is 60 kilogram; the mass of your colleague, M, is 70 kg; your centre-to-centre separation, r, is 1 m; and G is 6.67 × 10 -11 newton square metre kilogram-2.
How do you calculate the gravitational force of a proton?
Example 2.1: Use Newton’s Law of Gravitation to calculate the gravitational attraction between two protons separated by a distance of 1 fm (i.e. 10-15 m). This problem involves a simple substitution: F = Gmpmp/r2 = [6.67 x 10-11] [1.67 x 10-27]2 / [1 x 10-15]2 = 1.86 x 10-34 N.
How is gravitational acceleration calculated?
Formulae
- Gravitational Acceleration: g = (G × Mass)/(distance from the center)2.
- Comparing gravitational accelerations: acceleration at position A = acceleration at position B × (distance B/distance A)2.
- Calculating mass: Mass = (g × distance2)/G.
How do you find the gravitational force of an electron?
All Answers (4) The gravitational attraction between two electrons is given by Gm2/r2, where G is the gravitational constant, m is the electron mass and r is the distance between the two electrons. The numerical value of the numerator is approximately 5.5 × 10−71.
What is the ratio of electrostatic and gravitational force?
The ratio of the magnitude of the electrostatic force to gravitational force in this case is, thus, FFG=2.27×1039 F F G = 2.27 × 10 39 .
How do we know light is massless?
Light is composed of photons, so we could ask if the photon has mass. The answer is then definitely “no”: the photon is a massless particle. According to theory it has energy and momentum but no mass, and this is confirmed by experiment to within strict limits.
How do you solve gravitational problems?
We can calculate the force of gravitational attraction between two objects using Newton’s equations. Write down Newton’s equation for gravitational force, F = G (M x m) / r squared, where M is the mass of one object, m is the mass of the other object, and r is the distance between the centers of the two masses.
What is the unit of gravitational pull?
The gravity of Earth, which is denoted by g, refers to the acceleration that the Earth imparts to objects on or near its surface. In SI units this acceleration is measured in metres per second squared (in symbols, m/s2) or equivalently in newtons per kilogram (N/kg).
Does a photon mass have a gravitational pull?
NB The ‘Photon Mass’ very likely exists inside an almost infinitely small volume, so therefore it’s gravitational pull will only be detectable at exceedingly short range, well beyond detection of any available technology for considerable time to come.
Do photons have mass or energy?
Energy & mass cannot be interchangeable with regards having the ability to generate gravitational force, because otherwise ‘binding energy’ would also contribute, obviously it does not. Do we have an impasse, maybe not, if photons actually possess mass after all.
Where does the energy of a proton come from?
The bare masses of the quarks that make up a proton add up to less than 10\% of the total mass of a proton, so you have to wonder where the rest of the energy comes from. And it comes from that “gravitational pull” of the color field.
Do photons contribute to the curvature of space?
If you use General Relativity instead you’ll find that photons make a contribution to the stress energy tensor, and therefore to the curvature of space. See the Wikipedia article on EM Stress Energy Tensor for info on the photon contribution to the stress energy tensor, though I don’t think that’s a terribly well written article. Yes.