Angular momentum of a figure skater spinning

Reference no: EM13551626

What is the angular momentum of a figure skater spinning at 2.0rev/s with arms in close to her body, assuming her to be a uniform cylinder with a height of 1.5 m, a radius of 15cm , and a mass of 48kg ? How much torque(in magnitude) is required to slow her to a stop in 4.4s , assuming she does not move her arms?

Reference no: EM13551626

Questions Cloud

Determine the rate of the steam production : Hot exhaust gases leaving an internal combustion engine at 400 C and 150kPa at a rate of 0.8 kg/s is to be used to produce saturated steam at 200 C in an insulated heat exchanger. Water enters the heat exchanger at the ambient temperature of 20 C,..

How large is the net force acting on the boat : A certain speed boat weighs 5,880 N. It can accelerate from 0 to 40 m/s in 5 seconds. a) What is the mass of the boat?b) What is the acceleration?c) How large is the net force acting on the boat?

What is the speed of one particle as seen by other particle : Two atomic particles approach each other in a head-on collision. Each particle has a mass of 1.77 x 10-25 kg. The speed of each particle is 1.94 x 108 m/s when measured by an observer standing in the laboratory.

Difference is there between earth clock and spaceship clock : An astronaut travels to Mars with a speed of 8400 m/s. After 1 month (30.0 days) of travel, as measured by clocks on Earth, how much difference is there between the Earth clock and the spaceship clock? Give your answer in seconds.

Angular momentum of a figure skater spinning : What is the angular momentum of a figure skater spinning at 2.0rev/s with arms in close to her body, assuming her to be a uniform cylinder with a height of 1.5 m, a radius of 15cm , and a mass of 48kg ? How much torque(in magnitude) is required to sl..

Lowest three standing wave frequencies for this string : A string 2.0 m long is held fixed at both ends. IF a sharp blow is applied to the string at its center, it takes 0.050 s for the pulse to travel to the ends of the string and return to the middle. What are the lowest three standing wave frequencies f..

How far are you from the base of the column : The sun is in the sky at an angle of 22 degrees from vertical. You’ve built a column exactly 12.0 meters in height. You stand on the ground at the end of the column’s shadow. (THIS is where the concepts of sin, cos, and tan originally came from.....)..

Consider diffraction of sound waves around the head : For high frequency sounds, the ear's principle method of localization is the difference in intensity sensed by the two ears. why can't the ear reliably use this method for low-frequency sounds? doesn't the head cast a "sound shadow" regardless of ..

Ladder makes with the floor as seen by an observer on earth : A ladder 4.9 m long leans against a wall inside a spaceship. From the point of view of a person on the ship, the base of the ladder is 2.9 m from the wall, and the top of the ladder is 3.9 m above the floor. The spaceship moves past the Earth with a ..

User Account

All Pages