الاسم الثلاثي

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السبت الراعي

الاحد المهندسين

الاحد دار السلام

الاربع الراعي

الاثنين مدينة نصر

لو مش بتدرس معانا

two asteroids one of mass 7.12 x 10¹⁸Kg and the other with mass 5.33 x 10⁸Kg if the distance between them is 10 x 10¹⁰m , what is the approximate force of gravity that effect the bigger body

Two satellites of equal masses orbit a plant . satellite B orbits the earth of radius twice the orbit of radius of satallite A which of the following statement is true

The gravitional force of satellite A is four times less than that of satellite B

The gravitional force of satallite A is two times Less than that of B

The gravitional force of satellite A is four times greater that oF B

Two balls of masses 8 kg and 20 kg , the distance between their centers is 0.2 m , if the universal gravitational is G , so the attraction force between them ………

8000 G Newton

4000 G newton

40 G newton

Two bodies the distance between them is 10 meter if the mass of the first body is 3 Kg while the mass of the second body is 6 Kg ... A third body of mass 2 Kg was inserted exactly at the mid distance between the two bodies what is the resultant attraction force affecting on that third body

If R is the radius of the earth what is the height above surface of earth at which the acceleration due to gravity ( g) become quarter its value on surface of earth

1/2 R

1/4 R

if the radius of a planet is 7.14 x 10⁷m and its mass is 1.9 x 10 ²⁷Kg and G = 6.67 x10^-11Find :
a ) the attraction force acting on the object of mass 1 Kg at plant surface

2.486 N

24.86 N

A plant has the same mass of earth but twice its diameter giving that gravity field intensity on earth surface ( g = 10 m/s2 ) find the acceleration due gravity on that plant

2.5 m/s2

25 m/s2

6.25 m/s2

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