Pregunta
Which expression is dimensionally consistent with an expression that would yield a
value for time
? (
is velocity,
is distance, and
is time)
-
-
-
-
-
value for time
Ask by Dickson Kelley. in the United States
Jan 27,2025
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Como
Beyond the Answer
To find an expression that yields a value for time
, let’s break down the dimensions of each option. Velocity
has dimensions of
(length/time), distance
has dimensions of
, and time
has dimensions of
.
-
In
, the dimensions are , which is consistent with time — good choice! -
In
, the dimensions are —not what we want. -
In
, the dimensions are —still not . -
In
, the dimensions are —definitely off. -
In
, the dimensions are —a time value but not .
So, the dimensionally consistent expression yielding a value for time
is
.

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