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  1. KE gets converted to Q, thermal energy KE = 1/2*m*v^2 Q = KE, assuming complete conversion to thermal energy. Thus Q = 1/2*m*v^2 Data: m:=1050 kg; v:=250/9 meters/sec; Result: Q = 405093...

    2 Answers · Science & Mathematics · 16/01/2010

  2. first calculate the time it took for sound to travel 45m v = d/t so t = d/v t = 45/330 t = .13636 secs subtract this time from the total time t = 1.45989 - .13636 t = 1.32353 secs last, using the remaining time, find the average velocity of the thrown ball v = d/t v = 45/1.32353 v = 34 m...

    3 Answers · Science & Mathematics · 22/12/2012

  3. You have used all of the allotted 110 characters in the first section and not completed the question. Try again putting the sentence beginning with 'Suppose' in the box marked Now add a little more detail...

    2 Answers · Science & Mathematics · 09/03/2010

  4. 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

  5. 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

  6. (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

  7. 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

  8. 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

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