Find the angular velocity, in revolutions per day

Assignment Help Physics
Reference no: EM13106264

When some stars use up their fuel, they undergo a catastrophic explosion called a supernova. This explosion blows much or all of a star's mass outward, in the form of a rapidly expanding spherical shell. As a simple model of the supernova process, assume that the star is a solid sphere of radius R that is initially rotating at 1.6 revolutions per day. After the star explodes, find the angular velocity, in revolutions per day, of the expanding supernova shell when its radius is 3.7R. Assume that all of the star's original mass is contained in the shell.

Reference no: EM13106264

Questions Cloud

Determine the distance each object : Two objects with masses of 2.10 kg and 6.80 kg are connected by a light string that passes over a frictionless pulley. (a) Determine the tension in the string.
Confidence interval estimation-mean and standard deviation : Compute a 95% confidence interval for the population mean, based on the sample 1, 2, 3, 4, 5, 6, and 30. Change the number from 30 to 10 and recalculate the confidence interval.
What is the verticle deflection d of the electrons : A horizontal beam of electrons initially moving at 4.0x10^7 m/s is deflected vertically by the vertical electric feild between oppositely charged parallel plates. the magnitude of the field is 2x10^4N/C. What is the verticle deflection d of the el..
Swot and internal analysis : SWOT Analysis Internal Analysis (Strengths and Weaknesses). For example: Describe the company's competitive advantage by discussing its efficiency, quality, motivation, and customer responsiveness.
Find the angular velocity, in revolutions per day : When some stars use up their fuel, they undergo a catastrophic explosion called a supernova. This explosion blows much or all of a star's mass outward, in the form of a rapidly expanding spherical shell.
Influence of globalization and management across borders : Explain the roles and responsibilities which organizational managers and leaders play in creating and maintaining the healthy organizational culture.
Explain the business and economic implications : Discuss culture, values, ethics, and other such elements that lead to differences in social culture; Explain the business and economic implications of differences in culture and values;
Calculate the kinetic energy : Calculate the kinetic energy that the earth has because of (a) its rotation about its own axis and (b) its motion around the sun. Assume that the earth is a uniform sphere and that its path around the sun is circular. For comparison, the total ene..
Find the net external torque that acts on each wheel : Two wheels have the same mass and radius of 4.5 kg and 0.39 m, respectively. One has (a) the shape of a hoop and the other (b) the shape of a solid disk. The wheels start from rest and have a constant angular acceleration with respect to a rotatio..

Reviews

Write a Review

 

Physics Questions & Answers

  What are the magnitude and direction of the electric field

The edge of a cube consist of equal resistors of resistance R, that are joined at the orners, let a battery be connected to two opposite corners of a face of cube. what is the efective resistance.

  What is the exact contact lens prescription

He would like a prescription for contact lenses to serve the same purpose. What is the exact contact lens prescription, in diopters.

  Use greens function for a plane

A 4.6 long, 480 steel beam extends horizontally from the point where it has been bolted to the framework of a new building under construction.

  What is the slit width

What is the angular momentum of a 3.2 kg uniform cylindrical grinding wheel of radius 12cm while rotating at 1400 rpm.

  Find the force that a seat in the roller-coaster

A uniform magnetic field of 0.50 T is directed along the positive x axis. A proton moving with the speed of 60 km/s enters this field. The helical path followed by the proton shown has a pitch of 5.0 mm. find the angle between the magnetic field an..

  What is the gauge pressure of the air in the tires

What is the gauge pressure of the air in the tires when its temperature rises to 27 .00C and its volume increases to 1.67 x 10-2 m3? Assume atmospheric pressure is 1.01 x 105 Pa.

  Molecules angular speed about the center of mass

The molecule has a rotational kinetic energy that is of the translational kinetic energy of its center of mass. What then is molecule's angular speed about the center of mass.

  Find the final temperature of the water in the cavity

A tennis racket has nylon strings. If one of the strings with a diameter of 1 mm is under the tension of 15 N, how much is it lengthened from its original lenght of 40 cm.

  What is the lifting force acting on jet provided by air

a 600 ton Boeing business jet is flying at 500 mph at a constant altitude of 35,00 ft. if the jet is holding passengers as cargo amounting to a weight of 37 tons, what is the lifting force acting on the jet provided by the air?

  Determine the internal resistance of the battery

The cockroach finds a bread crumb on the rim and, of course, stops. What is an angular speed of the lazy Susan after the cockroach stops.

  Determine the minimum nonzero thickness

A shotgun fires a large number of pellets upward, with some pellets traveling very nearly vertically and others as much as 1.0o from the vertical. suppose that the initial speed of the pellets is uniformly 150ms-1 and ignore air resistance.

  How much time is required for the bullet to reach the target

A 9300 kg boxcar travelling at 23 m/s strikes a second boxcar at rest. The two stick together and move off with a speed of 15 m/s. What is the mass of the second car.

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