Angular Acceleration of Earth, Physics

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

What is the neutron, Q. What is the neutron? Answer:- A neutron is...

Q. What is the neutron? Answer:- A neutron is a subatomic particle it's one of the building blocks of the atom. It has a mass of in relation to 1.675 x 10-27 kg. Its spin

Doppler effect, Doppler effect (C.J. Doppler) Waves emitted through a ...

Doppler effect (C.J. Doppler) Waves emitted through a moving object as attained by an observer will be blueshifted (compressed) if approaching, redshifted (elongated) if reced

Give the location of the image and the magnification, Q. A 4.5cm needle is ...

Q. A 4.5cm needle is placed 12cm away from a convex mirror of focal length 15cm. Give the location of the image and the magnification. Describe what happens as the needle is moved

Candela, candela; cd The basic SI unit of luminous intensity described...

candela; cd The basic SI unit of luminous intensity described as the luminous intensity in a given direction of a source which emits monochromatic photons of frequency 540 x 1

What is equipotential surface, What is Equipotential Surface Equipoten...

What is Equipotential Surface Equipotential Surface - surface of constant potential. No work is required in moving charges with such a surface. Electric fields are perpend

Describe escape velocity, Q. Escape Velocity An object will conquer the...

Q. Escape Velocity An object will conquer the force of gravity when its kinetic energy in the direction away from earth exceeds its potential energy. We find the smallest kinet

#title.optics, #question.def.refraction

#question.def.refraction

Law of reflection, The Law of Reflection While a ray of light strikes a...

The Law of Reflection While a ray of light strikes a plane mirror and the light ray reflects off the mirror. Reflection includes a change within direction of the light ray. The

What is attenuation, What is Attenuation? Attenuation: Attenuation i...

What is Attenuation? Attenuation: Attenuation is a reduction within the amplitude and intensity of a signal. This is a significant property into optical communications. This

If the resistance to earth of earth electrode is high?, Q. Action to be mad...

Q. Action to be made if the resistance to earth of earth electrode is high? Ans: Earth resistance lies upon soil conductivity. To reduce earth resistance dig around the earth

Write Your Message!

Name

Email id

Message

Verfication Code

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!

Submit Assignment

All rights reserved! Copyrights ©2019-2020 ExpertsMind IT Educational Pvt Ltd