A typical laboratory centrifuge rotates at 4000 rpm. Testtubes have to be placed

Question

A typical laboratory centrifuge rotates at 4000 rpm. Testtubes have to be placed into a centrifuge very carefully because ofthe very large accelerations What is the acceleration at the end of a testtube that is 10 cm from the axis of rotation? Express your answer using twosignificant figures. i got1.8×104m/s2 whichis right.... and my question is this one.... For comparison, what is themagnitude of the acceleration a test tube would experience ifdropped from a height of 1.0 m and stopped in a 1.0-ms-longencounter with a hard floor? Express your answerusing two significant figures. A typical laboratory centrifuge rotates at 4000 rpm. Testtubes have to be placed into a centrifuge very carefully because ofthe very large accelerations What is the acceleration at the end of a testtube that is 10 cm from the axis of rotation? Express your answer using twosignificant figures. What is the acceleration at the end of a testtube that is 10 cm from the axis of rotation? Express your answer using twosignificant figures. i got1.8×104m/s2 whichis right.... and my question is this one.... For comparison, what is themagnitude of the acceleration a test tube would experience ifdropped from a height of 1.0 m and stopped in a 1.0-ms-longencounter with a hard floor? Express your answerusing two significant figures. For comparison, what is themagnitude of the acceleration a test tube would experience ifdropped from a height of 1.0 m and stopped in a 1.0-ms-longencounter with a hard floor? Express your answerusing two significant figures.

Explanation / Answer

angular speed w = 4000 rpm = 4000* 2 rad / 60 s = 418.87rad / s distance r= 10 cm = 0.1 m So, accleration a= r w^ 2                          = 1.7545 * 10 ^ 4 m / s ^ 2

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