Consider an object that at one time has energy E1 and momentum p1 and at a later time has energy E2 and momentum p2. Use the relativistic energy-momentum equation E2=p2c2+m2c4 to find the value of E22−E21. Express your answer in terms of p1, p2, m, and c.

Answers

Answer 1

The value of E₂² - E₁² can be expressed as c² times the difference of the squares of the momenta: E₂² - E₁² = c² (p₂² - p₁²).

To find the value of E₂² - E₁² using the relativistic energy-momentum equation, we can start by rearranging the equation to solve for E₂²:

E₂² = p₂²c² + m²c⁴

Similarly, we can rearrange the equation to solve for E₁²:

E₁² = p₁²c² + m²c⁴

Now, we can subtract the two equations to find the desired expression:

E₂² - E₁² = (p₂²c² + m²c⁴) - (p₁²c² + m²c⁴)

Simplifying the equation, we get:

E₂² - E₁² = p₂²c² - p₁²c²

Since we have a common factor of c², we can factor it out:

E₂² - E₁² = c²(p₂² - p₁²)

Therefore, the value of E₂² - E₁² can be expressed as c² times the difference of the squares of the momenta:

E₂² - E₁² = c² (p₂² - p₁²)

This expression is in terms of p₁, p₂, m, and c.

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Related Questions

what is the formula for determining the number of kanban cards or containers?

Answers

The formula for determining the number of Kanban cards or containers is:

Number of Kanban cards/containers = (Demand rate × Lead time) / Container size

In this formula:

Demand rate: The demand rate represents the average rate at which items or parts are consumed or required by the downstream process or customer. It is usually measured in units per time period (e.g., items per day).

Lead time: Lead time refers to the time required to replenish or produce a new batch of items once the stock or containers are empty. It includes the time for processing, manufacturing, transportation, and any other activities necessary to fulfill the demand.

Container size: The container size represents the number of items or parts that can be held within a single Kanban container. It is usually predetermined based on factors such as production efficiency, handling capabilities, and storage space.

By using this formula, organizations can determine the optimal number of Kanban cards or containers needed to maintain a smooth flow of materials or parts within the production or supply chain process. It ensures that the right amount of inventory is available to meet demand while minimizing waste and excess inventory.

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On a mysterious planet we find that a compass brought from Earth is oriented so that the north pole of the compass points towards the geographical south pole of the planet. We can conclude that:
a. The geographic poles of the planet do not coincide with its magnetic poles
b. The planet's north magnetic pole is at its geographic south pole.
c. The north magnetic pole of the planet is at its geographic north pole.
d. None of the above

Answers

On a mysterious planet we find that a compass brought from Earth is oriented so that the north pole of the compass points towards the geographical south pole of the planet. We can conclude that: The correct conclusion in this scenario would be: a. The geographic poles of the planet do not coincide with its magnetic poles.

When a compass brought from Earth is oriented in such a way that its north pole points towards the geographical south pole of the planet, it indicates that the planet's magnetic field is oriented opposite to Earth's magnetic field. In other words, the planet's north magnetic pole is located near its geographical south pole. This phenomenon suggests that the planet has a different magnetic field configuration than Earth, where the north magnetic pole aligns with the geographic north pole. The orientation of the compass indicates that the planet's magnetic field lines are running in the opposite direction compared to Earth.

Therefore, based on the behavior of the compass, we can conclude that the geographic poles and magnetic poles of the planet do not coincide. This highlights the variation and diversity of magnetic field configurations that can exist on different celestial bodies.

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