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4 years ago

10

Compared to yellow light, orange light has

1 answer:

beks73 [17]4 years ago

5 0

Compared to yellow light, orange light has
a longer wavelength and lower frequency.

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Four solid balls, each with a different mass, are moving at the same speed. Which ball would require the most force to stop its

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4 years ago

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alexandr402 [8]

Answer:

1.92 m/s

Explanation:

Velocity is defined as the distance moved per unit time with consideration of the direction. The direction aspect differentiates speed from velocity since for speed, we don't need to consider the direction.

$v=\frac {d}{t}$

Distance moved for circular path is equal to its circumference and the circumference is given by $2\pi r$ where r is the radius and substituting $2\pi r$ for d then

$v=\frac {2\pi r}{t}$

Substituting 5.5 m for r and 18 s for t then

$v=\frac {2\pi \times 5.5}{18}=1.919862177 m/s\approx 1.92 m/s$

To the nearest hundredth, the velocity is 1.92 m/s

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4 years ago

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Lelechka [254]

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3 years ago

5. The most dangerous place to use electrical equipment is?

podryga [215]

C) because you could get hurt if certain items fall in it and you are in water

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3 years ago

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Heather and Matthew take 45 s to walk eastward along a straight road to a store 72 m away. What is their average velocity?

vladimir1956 [14]

Answer:

v = 1.6 m/s

Explanation:

Given that,

Distance, d = 72 m

Time taken, t = 45 s

We need to find their average velocity. Average velocity of an object is given by total distance divided by total time taken.

$v=\dfrac{d}{t}\\\\v=\dfrac{72\ m}{45\ s}\\\\v=1.6\ m/s$

So, their average velocity is 1.6 m/s.

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4 years ago