मराठी
कर्नाटक बोर्ड पी.यू.सी.पीयूसी विज्ञान इयत्ता ११

P a Spacecraft Consumes More Fuel in Going from the Earth to the Moon than It Takes for a Return Trip. Comment on this Statement. - Physics

Advertisements
Advertisements

प्रश्न

A spacecraft consumes more fuel in going from the earth to the moon than it takes for a return trip. Comment on this statement.

टीपा लिहा
Advertisements

उत्तर

Yes, a spacecraft consumes more fuel in going from the Earth to the Moon than it takes for the return trip. In going from the Earth to the Moon, the spacecraft has to overcome the gravitational pull of the earth. So, more fuel is consumed in going from the Earth to Moon. However, in the return trip, this gravitation pull helps the spacecraft to come back to the Earth.

shaalaa.com
  या प्रश्नात किंवा उत्तरात काही त्रुटी आहे का?
पाठ 11: Gravitation - Short Answers [पृष्ठ २२४]

APPEARS IN

एचसी वर्मा Concepts of Physics Vol. 1 [English] Class 11 and 12
पाठ 11 Gravitation
Short Answers | Q 19 | पृष्ठ २२४

संबंधित प्रश्‍न

A nut becomes loose and gets detached from a satellite revolving around the earth. Will it land on the earth? If yes, where will it land? If no, how can an astronaut make it land on the earth?


Is it necessary for the plane of the orbit of a satellite to pass through the centre of the earth?


A satellite is orbiting the earth close to its surface. A particle is to be projected from the satellite to just escape from the earth. The escape speed from the earth is ve. Its speed with respect to the satellite


A pendulum having a bob of mass m is hanging in a ship sailing along the equator from east to west. When the ship is stationary with respect to water the tension in the string is T0. (a) Find the speed of the ship due to rotation of the earth about its axis. (b) Find the difference between T0 and the earth's attraction on the bob. (c) If the ship sails at speed v, what is the tension in the string? Angular speed of earth's rotation is ω and radius of the earth is R.


Choose the correct option.

The binding energy of a satellite revolving around the planet in a circular orbit is 3 × 109 J. It's kinetic energy is ______.


Answer the following question.

What is periodic time of a geostationary satellite?


Answer the following question in detail.

Obtain an expression for the critical velocity of an orbiting satellite. On what factors does it depend?


Describe how an artificial satellite using a two-stage rocket is launched in an orbit around the Earth.


Answer the following question in detail.

Two satellites A and B are revolving round a planet. Their periods of revolution are 1 hour and 8 hour respectively. The radius of orbit of satellite B is 4 × 104 km. Find radius of orbit of satellite A.


Which of the following statements is CORRECT in respect of a geostationary satellite?


The kinetic energy of a revolving satellite (mass m) at a height equal to thrice the radius of the earth (R) is ______.


There is no atmosphere on moon because ____________.


A satellite of mass 'm' is revolving around the earth of mass 'M' in an orbit of radius 'r' with constant angular velocity 'ω'. The angular momentum of the satellite is ______.

(G =gravitational constant)


Show the nature of the following graph for a satellite orbiting the earth. 

  1. KE vs orbital radius R
  2. PE vs orbital radius R
  3. TE vs orbital radius R.

An artificial satellite is moving in a circular orbit around the earth with a speed equal to half the magnitude of escape velocity from the earth. If the satellite is stopped in its orbit and allowed to fall freely onto the earth, the speed with which it hits the surface ______ km/s.

[g = 9.8 ms-2 and Re = 6400 km]


Two satellites of same mass are orbiting round the earth at heights of r1 and r2 from the centre of earth. Their potential energies are in the ratio of ______.


What is the typical altitude range for a polar satellite's orbit?


Which of the following is an example of a communication (geostationary) satellite launched by India?


Which application is mainly associated with polar satellites?


Share
Notifications

Englishहिंदीमराठी


      Forgot password?
Use app×