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  1. You know the linear speed and the mass of the ball so you know the translational kinetic energy, Kt Kt = 1/2 mv^2 = 50.54 J Now to get he rotational energy Kr, you need the moment of inertia of a solid sphere taken aroun its center, and the rotational speed of the ball...

    5 Answers · Science & Mathematics · 31/03/2010

  2. v = A sqrt(k/m) f ~ sqrt(k/m), so if the frequency is doubled, the max speed is doubled.

    2 Answers · Science & Mathematics · 24/04/2011

  3. (a) by the amount of time it takes to fill the bucket: 22 L / 96 seconds = 0.23 Liters (equal to 230 cm^3) coming out of the hose every second. We think of the water coming out of the hose as as cylinder with length L, surface area A and volume V...

    2 Answers · Science & Mathematics · 30/03/2012

  4. Since initial velocity is 34.8 and final velocity is 25 the change is 9.8 and time is 3.5 so magnitude is 9.8/3.5 and direction is to west as slowing down b)can be caluculated by s=ut+1/2at^2

    2 Answers · Science & Mathematics · 06/02/2011

  5. Note that, after t seconds, the boat travels 1.65t m towards the short and the boat floats 1.05t m down stream. Then, the distance that the boat actually travels is: D = √[(1.65t)^2 + (1.05t)^2] = 1.96t. Therefore, the speed of the boat is: v...

    2 Answers · Science & Mathematics · 18/02/2011

  6. The answer is C, because in the spectators frame the sprinter is going .99c and light is traveling @ 1.00c: However in the frame of the runner, the light it STILL traveling @ 1c, the runner will say that the light beat him by...

    2 Answers · Science & Mathematics · 20/05/2011

  7. Hey! here is the solution: Momentum Conservation: Since the boat is at rest initially, the total momentum is zero. So it has to be zero after the mass is...

    2 Answers · Science & Mathematics · 18/02/2013

  8. Sorry, your link leads to a login page requiring a P/W....

    2 Answers · Science & Mathematics · 27/03/2013

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