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3 years ago

12

a car is traveling at a speed of 55 mph the speed increased to 75 mph if the time needed to hange its speed is 4 seconds whats t

he acceleration ?

1 answer:

Savatey [412]3 years ago

6 0

v = 75 mph = 33.52 m/s

u = 55 mph = 24.58 m/s

t = 4 sec

acceleration = v-u/t

= 33.52-24.58/4

= 8.94/4

= 2.235 m/s

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To calculate the depression in freezing point, we use the equation:

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$16.6^oC-\text{freezing point of solution}=1\times 3.59^oC/m\times 0.0312m\\\\\text{Freezing point of solution}=16.5^oC$

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Elevation in boiling point is defined as the difference in the boiling point of solution and freezing point of pure solution.

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