Angular Acceleration of Earth, Physics

Assignment Help:

2. The earth’s rotation about its axis changes measurably over time; see https://en.wikipedia.org/wiki/Leap_second and https://en.wikipedia.org/wiki/Tidal_acceleration for details if you wish. You don’t have to worry about the details; all you need to know is that our days are growing longer by about 2.3 milliseconds per century. Assume this is due to some uniform angular acceleration.
A. What is the angular acceleration ? = d?/dt associated with this slowing?
B. If this acceleration continues at this same constant rate indefinitely, how long will it take for the earth to stop spinning on its axis? (It won’t go past this point and start spinning in the opposite direction. In fact, for a couple of reasons, it won’t even stop spinning.)
C. How many complete rotations will occur before the earth stops spinning?
D. Days will get longer as the earth slows, as long as we define a day as the time between sunrises. How long will it be before a day is 1 second longer than it is now (= 86400 seconds)?

Related Discussions:- Angular Acceleration of Earth

Voltage signal:digital voltage signal, The signal which has only two values...

The signal which has only two values. I.e. either a constant high value of voltage or zero value is known as digital voltage signal

Evaluate the resonance frequency, The forced harmonic oscillations have sam...

The forced harmonic oscillations have same displacement amplitude at frequencies ω 1 = 400 Hz and ω 2 = 800 Hz. Evaluate the resonance frequency at which the displacement is maxi

Meissner effect, Meissner effect (W. Meissner; 1933): The reduction of...

Meissner effect (W. Meissner; 1933): The reduction of the magnetic flux in a superconducting metal while it is cooled below the transition temperature. i.e., superconducting m

How to demagnetize the screwdriver, Q. Jingdan turned a screwdriver into a ...

Q. Jingdan turned a screwdriver into a magnet by rubbing it with a strong bar magnet to pick up a screw that has fallen into an inaccessible spot. How could he demagnetize his

Calculate the velocity , An object of mass 4 kg is moving on a smooth horiz...

An object of mass 4 kg is moving on a smooth horizontal surface with a velocity of 10 m/s in rightward direction. A horizontal force F which shows in the above figure was applied o

Hopw to solve problem of movable pulleys, How to solve problems based on mo...

How to solve problems based on movable pulleys in an atwood machine? Ans) 1.Draw the FBD. 2.Make the force equations for the two or more masses. 3.There will be a variable simi

Solid state simeconductor, Solid state simeconductor It is main advant...

Solid state simeconductor It is main advantage is that it has much better resolution than NaI(Tl) It is main disadvantages are that it is not available in large sizes and it i

Motion, a car of mass 800kg is pulling a trailer 300kg where sin a=1|200.Re...

a car of mass 800kg is pulling a trailer 300kg where sin a=1|200.Resistance to motion(apart from gravity) is 1.5N per kg of mad for each vehicle.calculate the pulls of the engine a

Inclined plane frictionless motion help, A block initial located 3m up a fr...

A block initial located 3m up a frictionless inclined plane is given an initial velocity of 6m/s up the ramp. The plane is 10m long and titled by 30 degree. a) How long does it tak

Expermient of a tin can charcoal burner, A tin can charcoal burner A la...

A tin can charcoal burner A large tin can at least 10 cm in diameter should be use. About 4 cm from the bottom mark off triangular windows around the can, as shown in the diagr

Write Your Message!

Captcha
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