t₂ − t₁ is the symbol for what?

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Multiple Choice

t₂ − t₁ is the symbol for what?

Explanation:
t₂ − t₁ represents the amount of time that passes from time t₁ to time t₂. In physics, this duration is called the time interval and is written with the Greek letter Δt. It tells you how long something lasts or how much time elapses between two moments, with units of seconds. If t₂ comes after t₁, Δt is positive; if the moments were swapped, it would be negative, but we usually think of the magnitude as the elapsed time. The other quantities refer to different ideas: Q is heat energy transferred, Cp is the specific heat capacity at constant pressure, and m is mass.

t₂ − t₁ represents the amount of time that passes from time t₁ to time t₂. In physics, this duration is called the time interval and is written with the Greek letter Δt. It tells you how long something lasts or how much time elapses between two moments, with units of seconds. If t₂ comes after t₁, Δt is positive; if the moments were swapped, it would be negative, but we usually think of the magnitude as the elapsed time.

The other quantities refer to different ideas: Q is heat energy transferred, Cp is the specific heat capacity at constant pressure, and m is mass.

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