Change of moment of inertia is what factor of original

Assignment Help Physics
Reference no: EM13868170

An ice skater spins at .8 rev/s with arms extended. Pulls arms in and spins 5.3 rev/s. Change of moment of inertia is what factor of original. 

Reference no: EM13868170

Questions Cloud

What is the current in the wire : A 4.0 V potential difference is applied between the ends of a 0.70 mm -diameter, 75 cm -long nichrome wire.What is the current in the wire?
Move from rest through 90 degrees in 30 second : A door has mass of 44,000 kg. A rotating inertia of 5.7 X 10^5 kg m^2 at the hinge. width is 3.1 m. Minimum force at the outer edge to make it move from rest through 90 degrees in 30 second.
Calculate the book value of the machine at the end of year : A machine that cost $ 400,000 has an estimated residual value of $ 40,000 and an estimated useful life of four years. The company uses double- declining- balance depreciation. Calculate its book value at the end of year 3. Round to the nearest dollar..
Find the hight the ball rebounds : Steel ball of 300 g is attached to a 85cm fixed at one end and is released with cord horizontal. At bottom of its path it hits a 3.5 kg steel block at rest. Elastic and no friction. Find the hight the ball rebounds.
Change of moment of inertia is what factor of original : An ice skater spins at .8 rev/s with arms extended. Pulls arms in and spins 5.3 rev/s. Change of moment of inertia is what factor of original.
Why are equity earnings usually greater than cash flow : Why are equity earnings usually greater than cash flow generated from the investment? How can these equity earnings distort profitability analysis?
Member cb for a condition of equilibrium : A strut CB is guyed back to a wall support through cable BA. Two forces are applied to the concurrent joint at B. Determine the tension in cable BA and the force in member CB for a condition of equilibrium to occur.
Which causes thecylinder to rotate : Imagine that you have a solid cylinder (M = 2 kg, R = 0.1m, I =12MR2) and have wound a very light wire around it many times. You then attach a block of mass m = 1kg to the end of the wire, and allow the block to fall (starting from rest), unwinding t..
Calculate the amount of depreciation : Calculate the amount of depreciation to report during the year ended December 31 for equipment that was purchased at a cost of $ 43,000 on October 1. The equipment has an estimated residual value of $ 3,000 and an estimated useful life of five years ..

Reviews

Write a Review

Physics Questions & Answers

  What is the acceleration of the car

A race car starts from rest and travels east along a straight and level track. What is the acceleration of the car when vx = 12.0m/s

  Calculate what the electric field at a given point

A square insulating sheet 76.0cm on a side is held horizontally. The sheet has 6.30nC of charge spread uniformly over its area. Calculate the electric field at a point 0.250 mm above the center of the sheet

  What is the speed of the bullet

Agent Arlene devised the following method of measuring the muzzle velocity of a rifle. She fires a bullet into a 4.600-kg wooden block resting on a smooth surface, What is the speed v of the bullet

  Find the fraction of the kinetic energy in tires and wheels

The 1000 kilogram mass of a car includes four tires, each of mass (including wheels) 34 kilogram and diameter 0.80 meter. Find the fraction of the kinetic energy in the tires and wheels

  Compute his terminal speed if he falls feet first

A 60 skydiver can be modeled as a rectangular "box" with dimensions 21 41 1.8. What is his terminal speed if he falls feet first

  Find the energy or wavelength of the emitted photon

If the electron drops back to the ground state, will a photon be emitted? If it is true then, find the energy or wavelength of the emitted photon compared to that of the absorbed photon

  What is the tension in the supporting chain

A single chain supports a pulley whose weight is 40 N. Two identical 80-N weights are then connected with a cord that passes over the pulley

  What is the total of the daily increases in time

what is the total of the daily increases in time (that is, the sum of the gain on the first day, the gain on the second day, etc.)?

  What is the buoyant force that acts on the ship

What weight of water is displaced by a 100-ton floating ship? What is the buoyant force that acts on the ship

  What is the ratio of the amplitudes of the two waves

Two earthquake waves of the same frequency travel through the same portion of the Earth, What is the ratio of the amplitudes of the two waves

  Two particles a and b strike each other as shown ma 29 kg

two particles a and b strike each other as shown. ma 2.9 kg and mb 1.3 kg. just before the collision va 2i 8j ms

  What are the magnification of this telescope

Two converging lenses, one with f = 5.0 cm and the other with f = 50 cm, are made into a telescope. What are the magnification of this telescope

Free Assignment Quote

Assured A++ Grade

Get guaranteed satisfaction & time on delivery in every assignment order you paid with us! We ensure premium quality solution document along with free turntin report!

All rights reserved! Copyrights ©2019-2020 ExpertsMind IT Educational Pvt Ltd