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

Deformation, how to calculate the mass which causes a spring with a constan...

how to calculate the mass which causes a spring with a constant 12.5 n/m-1 to extend 12mm

What are basic attenuation mechanisms in a fibre, What are basic attenuatio...

What are basic attenuation mechanisms in a fibre? The fundamental attenuation mechanisms into a fibre are as follows: a. Absorption b. Scattering (Mie and Rayleigh scatte

Nuclear decays, Nuclear Decays Uses a proper Monte Carlo engine to simu...

Nuclear Decays Uses a proper Monte Carlo engine to simulate real decays.The decay of 500 atoms of the fictional element Balonium.

Determine about the stacking fault, Determine about the Stacking fault     ...

Determine about the Stacking fault       Stacking faults happen in a number of crystal structures, but the common example is in close-packed structures.  Face-cantered cubic (f

Newton rings, on newtons ring determine the refractive indexl of a liquid

on newtons ring determine the refractive indexl of a liquid

WORK AND ENERGY, a boy throws a ball of mass 20 kg vertically upwards.it ra...

a boy throws a ball of mass 20 kg vertically upwards.it raises to a maximum height of 100 m.at what height will the kinetic energy be reduced to 70%

Estimate the temperature of vapour pressure, The vapour pressure of a subst...

The vapour pressure of a substance at  20.0 o C is 38.1  kPa and its enthalpy of vaporisation is 49.6  kJ mol -1 . Estimate the temperature at which its vapour pressure is 80.0 k

Determine traveling of a ball, A ball falling vertically from rest for 3 se...

A ball falling vertically from rest for 3 seconds travels very nearly: a) 14.7 meters b) 29.4 meters c) 44.1 meters d) 88.2 meters Ans: A ball falling ve

How fast is each particle moving, Two particles each have a mass of 6.7 x10...

Two particles each have a mass of 6.7 x10 -5 kg. One has a charge of +5.0 x 10 -6 C, and the other has a charge of -5.0 x 10 -6 C. They are initially held at rest at a distance of

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