Hovercraft B/C

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Adi1008
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Re: Hovercraft B/C

Postby Adi1008 » Fri May 11, 2018 1:58 am

UTF-8 U+6211 U+662F wrote:
Adi1008 wrote:Suppose I have a bowling ball with a diameter of 25 centimeters. What is the largest mass it can have such that it floats in corn syrup (specific gravity = 1.4)?

Answer


Looks good to me. Your turn!
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UTF-8 U+6211 U+662F
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Re: Hovercraft B/C

Postby UTF-8 U+6211 U+662F » Fri May 11, 2018 2:12 am

All right! Given a graph of v vs t, how do you find the displacement traveled? What about the distance?

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Re: Hovercraft B/C

Postby Adi1008 » Fri May 11, 2018 2:39 am

UTF-8 U+6211 U+662F wrote:All right! Given a graph of v vs t, how do you find the displacement traveled? What about the distance?

Answer
a.
b.
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Re: Hovercraft B/C

Postby UTF-8 U+6211 U+662F » Fri May 11, 2018 7:58 pm

Adi1008 wrote:
UTF-8 U+6211 U+662F wrote:All right! Given a graph of v vs t, how do you find the displacement traveled? What about the distance?

Answer
a.
b.

Yep!
Area under the curve for the unitiated in calculus (signed area for a and unsigned for b)

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Re: Hovercraft B/C

Postby Adi1008 » Sat May 12, 2018 11:15 pm

UTF-8 U+6211 U+662F wrote:
Adi1008 wrote:
UTF-8 U+6211 U+662F wrote:All right! Given a graph of v vs t, how do you find the displacement traveled? What about the distance?

Answer
a.
b.

Yep!
Area under the curve for the unitiated in calculus (signed area for a and unsigned for b)

Suppose you have a contracting star whose new radius is 1/x as big as the old radius.

a. How much faster does the star spin?
b. By what factor does its rotational kinetic energy change?
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Re: Hovercraft B/C

Postby MattChina » Wed May 16, 2018 1:24 am

Adi1008 wrote:
UTF-8 U+6211 U+662F wrote:
Adi1008 wrote:
Answer
a.
b.

Yep!
Area under the curve for the unitiated in calculus (signed area for a and unsigned for b)

Suppose you have a contracting star whose new radius is 1/x as big as the old radius.

a. How much faster does the star spin?
b. By what factor does its rotational kinetic energy change?


a. x^2 faster
b. x^2
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2017 events: Hovercraft, Ecology, Optics, Write it do it, Fast Facts, Mystery Design(NY trial)
2018 events: Hovercraft, Ecology, Optics, Thermodynamics, Quiz bowl(NY trial)

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