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Rzqust [24]
3 years ago
15

An airplane flew 1000 m in 400 seconds. What is the airplane's speed?

Physics
2 answers:
Eddi Din [679]3 years ago
7 0

the answer is 2.5 m/s^2

step by step:

1. speed= distance/time

so the speed of the plane = 1000/400

(cancel the two zero's of the 400 with two of the three zero's of the 1000)

you'll have 10/4 left

10/4= 2.5

weqwewe [10]3 years ago
6 0

Answer:

speed =  \frac{distance}{time}  \\ \:  \:  \:  \:  \:  \:  \:  \:  \:  \:  \:  \:  \:  \:  \:  \:   =  \frac{1000}{400}  \\   \:  \:  \:  \:  \:  \:  \:  \:  \:  \:  \:  \:  \:  \:  \:  \: = 2.5m {s}^{ - 1}

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Answer:

C.

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The info below shows three kettles with their powers and the time they take to boil 500cm3 of water. If electricity costs 9p per
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The cost of boiling 500 cm³ of water using the 3 KW Kettle is 1.35p

<h3>What is power? </h3>

This is defined as the rate in which energy is consumed. Electrical power is expressed mathematically as:

Power (P) = Energy (E) / time (t)

P = E / t

<h3>How to determine the energy</h3>
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E = 0.15 KWh

<h3>How to determine the cost</h3>
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What is one way to increase the amplitude if a wave in a medium?
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Explanation:

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An object travels in a circular path of radius 5.0 meters at a uniform speed of 10. m/s. What is the magnitude of the object's a
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I think F= mv²/r
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3 years ago
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