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Arturiano [62]
4 years ago
15

A cyclist is travelling at 4 metres per second for 100 metres, how long does it take?

Physics
1 answer:
Slav-nsk [51]4 years ago
7 0

Answer:

25 seconds!

Explanation:

I just had to find what number to multiply 4 to get 100 and it was 25

4x25=100

Or you could do the easier way by dividing 100 by 4 which has the same answer: 25

100÷4=25

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What is science and why do we study science and what are the benefits we are going to get from it ?​
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Answer:

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Explanation:

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4 0
2 years ago
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bagirrra123 [75]

Answer:

The wavelength of observed light on earth is 568.5 nm

Explanation:

Given that,

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We need to calculate the wavelength of observed light on earth

Using formula of wavelength

\lambda_{0}=\lambda_{e}\times\sqrt{\dfrac{1-\dfrac{v}{c}}{1+\dfrac{v}{c}}}

\lambda_{0}=697\times10^{-9}\times\sqrt{\dfrac{1-\dfrac{0.201 c}{c}}{1+\dfrac{0.201c}{c}}}

\lambda_{0}=697\times10^{-9}\times\sqrt{\dfrac{1-0.201}{1+0.201}}

\lambda=5.685\times10^{-7}\ m

\lambda=568.5\times10^{-9}\ m

\lambda=568.5\ nm

Hence, The wavelength of observed light on earth is 568.5 nm

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