Explain phase of weightlessness , Physics

Assignment Help:

The phase of weightlessness may be observed in the following situations:

(i) When objects fall freely under gravity : For example, a lift goes down freely, or an airship showing a feat in which it falls freely for a few seconds in the mean whereas its flight, are in state of weightlessness.

(ii)When a satellite revolves in its orbit around the earth: Weightlessness poses many serious problems to the astronauts. It seems quite complex for them to control their positions. Everything in the moon has to be saved tied down.

(iii) When bodies are at null points in outer space : On a body shown up, the force of the earth goes on reducing, but at the similar time the gravitational force of the moon on the body goes on enhancing. At one point, the two gravitational forces may be equal and opposite and the net pull on the body converts to zero. This is zero gravity fields or the null point and the body in question is said to appear weightless.   

 


Related Discussions:- Explain phase of weightlessness

What is excitation potential energy of an atom, Q. What is excitation poten...

Q. What is excitation potential energy of an atom? The energy required to increase an atom from its normal state into an excited state is called excitation potential energy of

Explain critical mass, Critical Mass: The minimum mass of Uranium requi...

Critical Mass: The minimum mass of Uranium required for smooth fission chain reaction is called as critical mass.

How much pressure produced by cylinder, How much pressure produced by 6" di...

How much pressure produced by 6" diameter cylinder with height of 14" at 95 degrees Celsius

Construction and working of michelson interferometer, Q.   Describe the con...

Q.   Describe the construction and working of Michelson Interferometer. Explain how you will determine the wavelength difference of two components of a line by Michelson Interferom

Magnetic Field, Consider a circular loop in a magnetic field. The loop is m...

Consider a circular loop in a magnetic field. The loop is made of elastic material with spring constant k. It carries a current I and has radius R when unstretched. We immerse it i

High value resistor, These resistors are usually of carbon composition, car...

These resistors are usually of carbon composition, carbon film on a ceramic rod and sealed in evacuated glass tube. End connections are made up of copper clad nickel-iron alloy.

Explain the change in kinetic energy of the crate, A crate with a mass of 2...

A crate with a mass of 210 kg is horizontally accelerated by a force of 95 N. The force is directed at an upward angle so that the vertical part of the force is 47.5 N and the

How many types of fibers are there, How many types of fibers are there? ...

How many types of fibers are there? There is truly only one fiber optic. The word "fiber optics" applies really to a stem of light physics dealing along with the properties of

What do you mean by normal adjustment of a telescope, What do you mean by n...

What do you mean by normal adjustment of a telescope? In What way it is better? What is the need of erecting lens in a terrestrial telescope? What do you mean by its magnific

How much time is required to raise the temperature, how much time is requir...

how much time is required to raise the temperature of the water from A family comes home from a long vacation with laundry to-do and showers to take. The water heater has been t

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