The actual meaning of delta in these circumstances

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In summary, the conversation discusses the meaning and use of the Delta symbol in the equation Vs = \Delta d / \Delta t. The symbol denotes the difference in the value of a quantity and is used to calculate average speed. The conversation also clarifies that the Delta symbol is looking for a specific type of distance or time.
  • #1
Spookie71
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Homework Statement


Please don't make fun of my question, I just want to have a strong understanding of the meaning and it's use

My textbook just pops these symbols out at me without explanation. Maybe it just expects I know this stuff
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In the equation Vs = [tex]\Delta[/tex] d / [tex]\Delta[/tex] t


I know that d is distance and t is time, so why include the Delta. What is the meaning of Delta itself and in this particular set of instances. Is it looking for a specific type of distance or time. I'm unclear
 
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  • #2
Delta denotes the difference in the value of a quantity. Suppose you are moving along a st line and you are at a dist d1 from a fixed point O (on the st line) at time t1. Afterward, at time t2, you are at a dist d2 from the same point O. Then we say delta d = d2-d1 and delta t = t2-t1.

Notice that the average speed in moving from first pt to the second is (d2-d1)/(t2-t1) = delta d/ delta t.
 
  • #3
Thank you shootingstar
 

1. What is the definition of delta in scientific terms?

Delta is a Greek letter commonly used in scientific fields to represent a change or difference in a variable. It can also refer to the rate at which a variable changes.

2. How is delta used in mathematics and physics?

In mathematics, delta is often used to represent a small change in a variable or function. In physics, it can represent the change in position, velocity, or acceleration of an object over time.

3. What is the significance of delta in chemistry?

In chemistry, delta is used to represent a change in energy or enthalpy of a system. It can also refer to the difference in electronegativity between two atoms in a molecule.

4. Can delta have multiple meanings in different contexts?

Yes, delta can have different meanings depending on the scientific discipline or context in which it is used. It is important to understand the specific definition of delta in a given situation.

5. How is delta calculated and represented in scientific equations?

Delta is usually calculated by subtracting the initial value from the final value. In equations, delta is denoted by the symbol Δ, which is a triangle with a line through it.

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