Compares the gravitational acceleration of the eartrh due to attraction of the sun with that due to attraction of the moon. Given that mass of sun,`M_(s)=1.99xx10^(30)`kg, mass of moon,`M_(m)=7.35xx10^(22)`kg , distance of sun from earth ,`r_(es)=1.49xx10^(11)` m and the distance moon from earth`r_(em)=3.84xx10^(8)`m.

Calculate the value of acceleration due to gravity on moon. Given mass of moon =7.4xx10^(22) kg, radius of moon =1740 km.

A projectile is to be launched from the surface of the earth so as to escape the solar system. Consider the gravitational force on the projectile due to the earth and the sun nly. The projectile is projected perpendicular to the radius vector of the earth relative to the centre of the sun in the direction of motion of the earth. Find the minimum speed of projection relative to the earth so that the projectile escapes out of the solar system. Neglect rotation of the earth. mass if the sum M_(s)2xx10^(30)kg, Mass of the earth M_(e)=6.4xx10^(24)kg Radius if the earth R_(e)=6.4xx10^(6)m, Earth- Sun distence r=1.5xx10^(11)m

Mass of earth is (5.97 xx 10 ^(24)) kg and mass of moon is (7.35 xx 10 ^(22)) kg. What is the total mass of the two ?

Calculate the force of attraction between the earth and the sun, given that mass of earth is 6xx10^(24) kg abd mass of sun =2xx10^(30) kg. the average distance between the two is 1.5xx10^(11)m.

The distance between the moon and earth is 3.8 xx 10^(8)m . Find the gravitional potential at the mid point of the joining them. Given that the mass of the earth is 6 xx 10^(24) kg , mass of moon = 7.4 xx 10^(22) kg and G = 6.67 xx 10^(11) Nm^(2)kg^(-2) .

Calculate the gravitational field strength and the gravitational potential at the surface of the moon. The mass of the moon is 7.34xx10^(22)kg and its radius is 1.74xx10^(6)m . (G=6.67xx10^(-11) Nm^(2)kg^-2).

The mass of sun is 2xx10^(30) kg and mass of earth is 6xx10^(24) kg. if the distance between the centers of sun and earth is 1.5xx10^(8) km, calculate the force of gravitation between them.

The total luminosity of the sun is 3.9xx10^(26)W . The mean distance of the sun from the earth is 1.496xx10^(11)m . Calculate the value of solar constant.

The change in the value of acceleration of earth toward sun, when the moon coomes from the position of solar eclipse to the position on the other side of earth in line with sun is : (mass of moon =7.36xx10^(22) kg, orbital radius of moon =3.8xx10^(8) m.)