To calculate Delta t, you would subtract Universal Time or UT from Terrestrial Time or TT. Delta t would be the difference.
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(delta)T=Kf (freezing point depression contstant_ x m (molality) x i
Delta t is the change in a variable t. "T" might refer to the time; in this case, it is (ending time) minus (start time).
v=▲x/▲tFormula of calculating velocity, x stands for the length the object has traveled, and t stands for how long it has been traveling.
Meed velocity first. V = delta X/delta t V = 50 m/30 s = 1.666 m/s now, acceleration A = delta V/delta t A = 1.666 m/s/30 s = 0.056 m/s2 ============
Average speed = (delta-X) / (delta-T) = (10 miles) / (2 hours) = 5 miles per hour