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Triss [41]
3 years ago
14

A schoolbus accelerates to 65 mph and enters the freeway. It travels

Chemistry
1 answer:
Inessa [10]3 years ago
7 0

Answer:

Distance cover by school bus = 149.5 miles

Explanation:

Given:

Velocity of school bus = 65 mph

Time taken by school bus = 2.3 hours

Find:

Distance cover by school bus

Computation:

Distance cover = Velocity x Time taken

Distance cover by school bus = Velocity of school bus x Time taken by school bus

Distance cover by school bus = 65 x 2.3

Distance cover by school bus = 149.5 miles

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lisabon 2012 [21]

Answer:

Option E, Half life = 2.96\times 10^3\ s

Explanation:

For a first order reaction, rate constant and half-life is related as:

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Where,

t_{1/2} = Half life

k = Rate constant

Rate constant given = 2.34\times 10^{-4}\ s^{-1}

t_{1/2}=\frac{0.693}{k}

=\frac{0.693}{2.34 \times 10^{-4}}=2.96\times 10^3\ s

So, the correct option is option E.

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3 years ago
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Explanation:

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Where digestion take place in : ( carbohydrates )<br>( fats )<br>( proteins )​
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Why is it the principle about the relationship between mass and volume always true of substance, but not always true of mixtures
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