Find her new rotational velocity

Reference no: EM13537772

A student sitting on a frictionless rotating stool has rotational inertia 0.97 kg*m2 about a vertical axis through her center of mass when her arms are tight to her chest. The stool rotates at 6.65rad/s and has negligible mass. The student extends her arms until her hands, each holding a 3.6kg mass, are 0.78m from the rotation axis. Ignoring her arm mass, what's her new rotational velocity? Repeat if each arm is modeled as a 0.78 long uniform rod of mass of 4.6 and her total body mass is 65.

Reference no: EM13537772

Questions Cloud

Compute the molar solubility of lead thiocyanate : Calculate the molar solubility of lead thiocyanate in pure water. The molar solubility is the maximum amount of lead thiocyanate the solution can hold. Lead thiocyanate, Pb(SCN)2, has a Kp value of 2.00*10^-5.

Compute the accounts receivable turnover for research : Compute the accounts receivable turnover for Research In Motion and Apple for each of the two most recent years using the data shown.

Describe the potential of the corrosion reaction : Air is 21 mole percent oxygen, that is, 0.21 atm oxygen at 1 atm. Suppose the pH of the water is 5.91 and that the concentration of iron(II) in the water is 3.29x 10-5 M, what is the potential of the corrosion reaction under the above conditions a..

Prepare year-end adjusting entry for uncollectibles : What amount would have been used in the year-end adjusting entry if the allowance account had a year-end unadjusted debit balance of $200?

Find her new rotational velocity : A student sitting on a frictionless rotating stool has rotational inertia 0.97 kg*m2 about a vertical axis through her center of mass when her arms are tight to her chest. what's her new rotational velocity

Define the electrochemical processes that occur in the rate : The electrochemical processes that occur in the rate limiting step of the corrosion of iron (oxidation of iron) are represented by the half-reactions

Prepare jlks journal entry for august : Compute the maturity date for note - Prepare JLKs journal entry for August 2

Explain the solubility of m(oh)2 in pure water : The generic metal hydroxide M(OH)2 has Ksp = 3.85×10-18. What is the solubility of M(OH)2 in pure water

Prepare any necessary journal entries for december : Prepare any necessary journal entries for December 31 and for the note's maturity date assuming it is honored - Krugg Company determines on May 1 that it cannot collect $1,000 of its accounts receivable from its customer P. Carroll.

User Account

All Pages