Compute her angular speed

Assignment Help Physics
Reference no: EM13656585

An ice skater rotating at 53.0 rad/s with her arms extended has a moment of inertia of 2.25 kg m2. If her arms are pulled in therefore the moment of inertia decreases to 1.80 kg m2, compute her angular speed?

Reference no: EM13656585

Questions Cloud

Evaluate the kinetic energy : Evaluate the kinetic energy that the earth has because of its rotation about its own axis. For comparison, the total energy used in the United States in one year is about 9.33 109 J
Find what was the original mass of the block of ice : A block of ice at 0C is added to a 59.8 gram aluminum calorimeter cup that holds 333gram of water at 17.7C. find what was the original mass of the block of ice
Find distance from central maximum to first-order minimum : Coherent microwaves of wavelength 5.00 centimeter enter a tall, narrow window in a building otherwise essentially opaque to the microwaves. find the distance from central maximum to first-order minimum
The steering wheel of a car has a radius : The steering wheel of a car has a radius of 0.14 m, while the steering wheel of a truck has a radius of 0.33 m. The similar force is applied in the same direction to each. What is the ratio of the torque produced by this force in truck to the torque ..
Compute her angular speed : An ice skater rotating at 53.0 rad/s with her arms extended has a moment of inertia of 2.25 kg m2. compute her angular speed
Find at what mark on the stick should a given mass be placed : A meter stick is on a pivot stand with the pivot placed at the 60 centimeter mark. Find at what mark on the stick should a 350 g mass be placed to balance it
Amateur radio operators often refer to their radio waves : Amateur radio operators often refer to their radio waves by wavelength. What are the estimated frequencies of the 160-m, 15-m, and 2-m wavelength amateur radio bands?
Find in which direction does the teeter-totter rotate : At the local playground, a 16 kilogram child sits on the end of a horizontal teeter-totter, 1.5 meter from the pivot point. Find in which direction does the teeter-totter rotate
Find the magnitude of the work that engine does in onesecond : A lawnmower engine with an efficiency of 0.17 rejects 5400 J of heat every sec. Find the magnitude of the work that the engine does in 1 second

Reviews

Write a Review

Physics Questions & Answers

  A length of aluminum wire has a resistance of 200 at

a length of aluminum wire has a resistance of 20.0 ? at 14.0degc. when the wire is warmed in an oven and reaches

  Find what charge must be placed on the ball

A styrofoam ball of mass 0.120 g is placed in an electric field of 6000 N/C pointing downward. What charge must be placed on the ball for it to be suspended

  Light bulbs in series and in parallel

Light Bulbs in Series and in Parallel. Two light bulbs have resistances of 500 ? and 1000 ?. The two light bulbs are connected in series across a 110 V line. (a) Find the current through the 500 ? bulb. A Find the current through the 1000 ? bulb. ..

  Determine the amount of thermal energy absorbed by sample

Demonstrating the low melting point of Gallium metal (29.8°C), an instructor removes a 1.00 kg sample of the metal from a container at room temperature (20.0°C) and places it onto the palm of his hand.

  Find the x-component of the alligator''s center of gravity

Suppose a 436 kg alligator of length 3.8 m is stretched out on a board of the same length weighing 95 N. find the x-component of the alligator's center of gravity

  What is the magnitude of the magnetic force on the particle

A long solenoid lying along the x-axis, as shown, has a 0.2 T field inside its coils. What is the magnitude of the magnetic force on the particle

  Two large-parallel-conducting plates

Two large, parallel, conducting plates are 23 cm apart and have charges of equal magnitude and opposite sign on their facing surfaces. An electrostatic force of2.5 10-15 N acts on an electron placedanywhere between the two plates.

  Find the electric flux passing through the shaded face

A uniform electric field with a magnitude of 6*10^6 N/C is applied to a cube of edge length 0.1 m. what is the electric flux passing through the shaded face of the cube

  What is the final angular velocity in rpm of the top

A toy top has a string wrapped around its body. The string has a length of 64cm and is wrapped around the top at a place where its radius is 2.0cm. What is the final angular velocity in rpm of the top when the string is completely unwound

  Determine how far away from you is this car

Late one night on a highway, a car speeds by you and fades into the distance. Under these conditions the pupils of your eyes have diameters of about 7.1 mm. How far away from you is this car

  Evaluate the velocity of the particle

If the particle is released from rest at the midpoint C, s=100mm, and the acceleration is measured as a= (4s) m/s2 , where s is in meters, evaluate the velocity of the particle when it reaches plate B, s=200mm, and the time it needs to travel C to ..

  A 10 cubic meter particulate air sample collects 01

a 10 cubic meter particulate air sample collects 0.1 millicurie of cobalt-60 on its filter. what is the airborne

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