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maxonik [38]
3 years ago
15

Emma is running for the bus. She runs 100 metres in 25 seconds. Calculate her speed

Physics
2 answers:
Afina-wow [57]3 years ago
8 0

Answer:

25km/h

is that the full question

beks73 [17]3 years ago
6 0
Speed = distance/time

s=d/t

s=100/25 = 4m/s

4m/s = 14.4kph (km/h)
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Simple physics (Final) (Pic provided)
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Explanation:

Boyle's law states that for an ideal gas kept at constant temperature, the pressure of the gas is proportional to its volume. Mathematically,

pV=const.

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The equation can also be rewritten as

p_1 V_1 = p_2 V_2

And if we apply it to the gas inside the balloon in this problem (assuming its temperature is constant), we have:

p_1 = 101 kPa is the initial pressure at sea level (the atmospheric pressure)

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Which means that the volume of the balloon will halve.

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#LearnwithBrainly

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