C = √ (E/m) We can determine c

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In summary, the conversation discusses the inability to accurately determine the speed of light by finding the energy divided by a small mass, as c^2 is a constant that relates mass and energy. The conversation proposes a method of accurately measuring energy by weighing a small mass in a known gravitational field and injecting it into an anti-calorimeter. The conversation also mentions that anti-calorimeters are available for purchase from a specific store.
  • #1
ebodet18
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If this is true why can't we just find an energy divided by a very small mass, square root it and that's what the speed of light equals for that object?
 
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  • #2
We can not because [itex] c^{2} [/itex] is the proportionality constant between mass and energy. One can not just find mass and energy in any ratio.
 
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  • #3
No problem. Just tell us how you would go about accurately measuring the amount of energy in the mass.
 
  • #4
Let's have fun with this. Weigh a small mass in a known gravitational field; you've got m. Inject slowly (vanishing KE) into an anti-calorimeter; you've got 2E.

You can buy anti-calorimeters from the same store that sells 1 light year Born rigid rods, frictionless surfaces, rigid massless shells, etc.
 
  • #5


While it is true that the equation C = √(E/m) can be used to determine the speed of light, it is important to note that this equation only applies to objects with no mass, such as photons. This equation is based on the theory of special relativity, which states that the speed of light is a constant in a vacuum and is the maximum speed at which all particles can travel.

For objects with mass, the equation C = √(E/m) does not apply as their speed is limited by their mass. In order to reach the speed of light, an object with mass would require an infinite amount of energy, which is not possible. This is why we cannot simply divide energy by a small mass and take the square root to determine the speed of light for that object.

Furthermore, the equation C = √(E/m) is derived from a more complex equation, E = mc^2, which takes into account the relationship between energy, mass, and the speed of light. It is not a standalone equation and cannot be used to determine the speed of light for objects with mass.

In conclusion, while the equation C = √(E/m) can be used to determine the speed of light for objects with no mass, it cannot be applied to objects with mass. The speed of light is a fundamental constant that is not dependent on the mass of an object, but rather on its energy and the properties of space and time.
 

FAQ: C = √ (E/m) We can determine c

What is the meaning of "C = √ (E/m) We can determine c"?

The equation C = √ (E/m) is a mathematical expression that relates the speed of light (C) to the energy (E) and mass (m) of an object. In other words, it shows the relationship between the three variables and allows us to calculate the speed of light if we know the energy and mass of an object.

How is this equation used in science?

This equation is used in various fields of science, such as physics and astronomy, to calculate the speed of light. It is also used in the theory of relativity, as it shows the connection between energy, mass, and the speed of light.

What is the significance of the speed of light in this equation?

The speed of light, denoted by the letter C, is a fundamental constant in physics. It is the fastest speed at which energy and information can travel in the universe. This equation shows that the speed of light is directly proportional to the square root of the ratio of energy to mass.

Can this equation be used for any object?

Yes, this equation can be used for any object, as long as the energy and mass are known. However, it is most commonly used for subatomic particles, such as photons and electrons, as their mass is relatively small compared to their energy.

Are there any limitations to this equation?

Yes, this equation is only applicable in certain conditions, such as when the object is moving at a constant speed and does not experience significant changes in energy or mass. It also does not take into account the effects of gravity or other forces on the object's motion.

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