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3 years ago

Terry usually rides his bike at 15mph. If his speed is reduced by 3 mph , how far can he ride in 1.7 hours ?

Physics

1 answer:

kakasveta [241]3 years ago

7 0

105 miles because you have to use the gif arable

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Find the distance in nm between two slits that produces the first minimum for 410-nm violet light at an angle of 14.5°.

Galina-37 [17]

Answer:

820 nm

Explanation:

We are given that

Wavelength= $\lambda=410 nm$

$\lambda=410\times 10^{-9} m$

$1nm=10^{-9} m$

$\theta=14.5^{\circ}$

For first minimum therefore

m=0

We know that for destructive interference

$(m+\frac{1}{2})\lambda=dsin\theta$

Substitute the values

$(0+\frac{1}{2})\times 410\times 10^{-9}=dsin 14.5$

$d=\frac{410\times 10^{-9}}{2\times sin 14.5}$

$d=820\times 10^{-9} m=820 nm$

Hence, the distance between two slits that produces the first minimum=820 nm

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3 years ago

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Frequency, f, is how many cycles of an oscillation occur per second and is measured in cycles per second or hertz (Hz). The period of a wave, T, is the amount of time it takes a wave to vibrate one full cycle. These two terms are inversely proportional to each other: f = 1/T and T = 1/f.

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3 years ago

If your speed changes from 10 km/h to 6 km/h, you have a(n) ______ acceleration.

Delicious77 [7]

If your speed changes from 10 km/h to 6 km/h then
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Whether it's a positive or negative one completely depends
on which direction you decided to call the positive direction,
when you started considering your speed and its changes.

If you decided to call the direction in which you're traveling
the positive direction, then a decrease in your speed is a
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But you could just as easily have said that you're traveling
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It's completely up to you, and how you define things.

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Ilia_Sergeevich [38]

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ZanzabumX [31]

The answer would be $5*10^9
$ .

If we divide $\frac{5*10^9}{1*10^6}$ , it gives us 0.005!

Hope this helped! c:

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4 years ago