What is her new rate of rotation

Assignment Help Physics
Reference no: EM13986635

1. A skater extends her arms, holding a 2kg mass in each hand. She is rotating about a vertical axis at given rate. She brings her arms inward toward her body in such a way that the distance of each mass from the axis changes from 1m to 0.50 m. what is her new rate of rotation.

2. A mass m is attached to a massless spring with a force constant k. The mass rests on a horizontal frictionless surface, The system is compressed distance x from the spring's initial position and then released. Find an expression for the momentum of the mass when the spring passes its equilibrium point.

Reference no: EM13986635

Questions Cloud

How much work is done on the ethanol : Assume that the vapor is an ideal gas (not a good approximation). a) How much work is done on the ethanol? b) What is the change in internal energy of the ethanol?
Problem regarding the interest receivable : On June 1, 2014, MicroTel Enterprises lends $60,000 to MaxiDriver Inc. The loan will be repaid in 60 days with interest at 10%.
What was the rate of acceleration : A ball is rolling down a hill was displaced 19.6 m while uniformly accelerating from rest. If the final velocity was 5.00 m/s. What was the rate of acceleration
What are the longterm global impacts of fukushima : What are the longterm global impacts of Fukushima likely to be, both in terms of the health consequences and the political/public policy ones
What is her new rate of rotation : A skater extends her arms, holding a 2kg mass in each hand. She is rotating about a vertical axis at given rate. She brings her arms inward toward her body in such a way that the distance of each mass from the axis changes from 1m to 0.50 m. what ..
Which the electron makes the transitions : What are the minimum value and maximum value of ni for the energy levels from which the electron makes the transitions corresponding to these lines?
Question regarding property taxes payable-annual adjustments : Lexington Builders owns property in Kaneland County. Lexington's 2013 property taxes amounted to $50,000. Kaneland County will send out the 2014 property tax bills to property owners during April 2015.
Did the radioactive material in reactors break containment : Explain why contaminated water has been such a big issue for Fukushima. Did the radioactive material in the reactors break containment? Explain
What is the speed of the other puck after the collision : Two hockey pucks of equal mass approach each other head-on with equal speeds of 8.4 m/s. They collide and one puck leaves the collision with a speed of 6.4 m/s. What is the speed of the other puck after the collision?

Reviews

Write a Review

Physics Questions & Answers

  The electric potential at infinity

A charge per unit length given by λ(x) = bx, where b = 12nC/m2, is distributed along the x axis from x = +9.0 cmto x = +16 cm. If the electric potential at infinity is taken to be zero, what is the electric potential at the point P on the yaxis at..

  Estimate how much longer would the jump be

An athlete executing a long jump leaves the ground at a 20° angle and travels 6.30 m. how much longer would the jump be

  Work is done by gravity during the upward motion of the book

A 0.80-kg book moves verticallyupward a distance of 17 m, andthen vertically downward 17 m,returning to its initial position. How much work is done by gravity during the upward motion of the book?

  Calculate the minimum diameter for the bold

A steel cable is to support an elevator whose total (loaded) massis not to exceed 3100 kg. calculate the minimum diameter for the bold

  Calculate the average power delivered to the entire circuit

A series ac circuit contains a 330ohm resistor, a 13.0mH inductor, a 2.50microF capacitor, Find the average power delivered to the entire circuit

  What is the height of the highest tree limb they can reach

Tarzan, whose mass is 80.0 kg, swings from a 3.00-m vine thatis horizontal when he starts. What is the height of the highest tree limb they can reach on the upwardswing

  What is the angular acclereration of the record

a record is turning at the rate of 33 r.p.m. when the 45 r.p.m. button is pressed. what is the angular acclereration of the record

  Calculate the total force on a charge

A line of positive charge is formed into a semicircle of radius R = 80.0 cm, Calculate the total force on a charge of 4.00 µC placed at the center of curvature

  How many electrons make up this charge

A sphere is charged with electrons to ?1 × 10^-5 C. How many electrons make up this charge

  Evaluate what is the size of the image

An object is located in front of a concave mirror at a distance of distance of 24 centimeter. The focal length of the mirror is 10 centimeter from the vertex. Evaluate what is the size of the image

  Find what is the mechanical energy lost due to friction

A sledge loaded with bricks has a total mass of 18.4 kg and is pulled at constant speed by a rope inclined at 19.2° above the horizontal. What is the mechanical energy lost due to friction

  What is the length of the pipe

Two adjacent resonant frequencies of an organ pipe are found to be 500 Hz and 600 Hz. What is the length of the pipe

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