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2 years ago

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i need help pls.

2 answers:

Naya [18.7K]2 years ago

3 0

Answer:

what we have to do in this question? I mean what we have to find

Masja [62]2 years ago

3 0

Wym by this? I don’t get how this problem is supposed to be like if you gave me a clearer understanding. Please resend it because I have no clue what you’re trying to tell me. Seriously.

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you are riding a bicycle which has tires with a 25-inch diameter at a steady 15-miles per hour, what is the angular velocity of

motikmotik

Answer:

The angular velocity is 6.72 π radians per second

Step-by-step explanation:

The formula of the angular velocity is ω = $\frac{v}{r}$ , where v is the linear velocity and r is the radius of the circle

The unit of the angular velocity is radians per second

∵ The diameter of the tire is 25 inches

∵ The linear velocity is 15 miles per hour

- We must change the mile to inch and the hour to seconds

∵ 1 mile = 63360 inches

∵ 1 hour = 3600 second

∴ 15 miles/hour = 15 × $\frac{63360}{3600}$

∴ 15 miles/hour = 264 inches per second

Now let us find the angular velocity

∵ ω = $\frac{v}{r}$

∵ v = 264 in./sec.

∵ d = 25 in.

- The radius is one-half the diameter

∴ r = $\frac{1}{2}$ × 25 = 12.5 in.

- Substitute the values of v and r in the formula above to find ω

∴ ω = $\frac{264}{12.5}$

∴ ω = 21.12 rad./sec.

- Divide it by π to give the answer in terms of π

∴ ω = 6.72 π radians per second

The angular velocity is 6.72 π radians per second

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3 years ago

Find the value of x.<br> 68°<br> 110°<br> 135°

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Answer:

$x =320$

Step-by-step explanation:

Given

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$x^2 + 200x = 166400$

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Split

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Answer:

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Step-by-step explanation:

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Answer:

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