Assume that strings do not slip as the tension is applied

Reference no: EM13551639

A child\'s top is held in place, upright on a frictionless surface. The axle has a radius of r = 3.96 mm. Two strings are wrapped around the axle, and the top is set spinning by applying T = 3.15 N of constant tension to each string. If it takes 0.650 s for the string to unwind, how much angular momentum does the top acquire? Assume that the strings do not slip as the tension is applied.

Reference no: EM13551639

Questions Cloud

Person wears hearing aid that uniformly increases intensity : A person wears a hearing aid that uniformly increases the intensity level of all audible frequencies of sound by 26.2 dB. The hearing aid picks up sound having a frequency of 250 Hz at an intensity of 2.40 10-11 W/m2. What is the intensity delivered ..

Determine the intensity level of the infrasound : There is evidence that elephants communicate via infrasound, generating rumbling vocalizations as low as 14 Hz that can travel up to 10 km. The intensity level of these sounds can reach 95 dB, measured a distance of 4.5 m from the source.

Find the consisting of the platform and its population : A 101-kg horizontal platform is a uniform disk of radius 1.97 m and can rotate about the vertical axis through its center. A 67.9-kg person stands on the platform at a distance of 1.19 m from the center and a 27.3-kg dog sits on the platform near the..

What is the new rate of rotation of the turntable : A turntable has moment of inertia 0.0300 kg m2 and is rotating at 25.0 rev/min. A 0.300 kg ball of clay is dropped vertically onto the turntable and sticks at a point 0.100 m from the center. What is the new rate of rotation of the turntable?

Assume that strings do not slip as the tension is applied : A child\'s top is held in place, upright on a frictionless surface. The axle has a radius of r = 3.96 mm. Two strings are wrapped around the axle, and the top is set spinning by applying T = 3.15 N of constant tension to each string

Change in radius is very small relative to initial radius : A solid brass (bulk modulus 6.7 x 10^10 N/m^2) sphere is subjected to a pressure of 1.0 x 10^5 Pa due to the earth's atmosphere. On Venus the pressure is 9.0 x 10^6 Pa. By what fraction change in radius/ initial radius does the radius sphere change w..

What is acceleration of center of mass of two-block system : Two blocks of mass m are suspended vertically as shown (one block by a spring, the other block to the first by a string), and initially motionless. An instant after the string is cut:

The magnitude of accelaration due to gravity : A small object oscillates back and forth at the bottom of a frictionless hemipherical bowl. The radius of the bowl is R, and the angle theta is small enough that the object oscillate in simple harmonic motion.

Angular frequency would it oscillate : A spring is compressed by 0.0541 m and is used to launch an object horizontally with a speed of 2.80 m/s. If the object were attached to the spring, at what angular frequency (in rad/s) would it oscillate?

User Account

All Pages