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Anarel [89]
3 years ago
15

Two swimmers compete in a race. Under what condition do the swimmers have the same power?

Physics
2 answers:
poizon [28]3 years ago
5 0
The amount of muscle mass in their body
Andreas93 [3]3 years ago
4 0
The amount of muscle mass in their body.
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Why is visible light safe to humans ?
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Explanation:

Visible light is the range of electromagnetic waves that humans can see. Anything that glows or gives off light makes waves of what we call visible light. The sun, light bulbs, candles and fire are all things that people automatically think of when it comes to light, but visible light comes from many sources and in many colors. Some other sources of visible light include: television and computer screens, glow sticks, and fireworks

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a car has a velocity of 10ms-1. it accelerates at 0.2 ms-2 for half minute find the total distance travelled and final velocity
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Answer:

Final velocity = 16 m/s

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Explanation:

We can use equation of motion to solve this:

v = u + at \\ v = 10 + 0.2(30) \\ v = 16 {ms}^{ - 1}

s = ut +  \frac{1}{2} a {t}^{2}  \\ s = 10(30) +  \frac{1}{2} (0.2) {(30)}^{2}  \\ s = 390m

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