Determine the Universal Gravitational Constant (G).

G = 6.6675 x N/

Explanation:

From Newton's law of universal gravitation,

F =  .................. 1

Where F is the force of attraction, G is the universal gravitation constant, M is the mass of a massive object e.g earth, m is the mass of the smaller object e.g moon, r is the radius of the massive object.

Newton's second law states;

F = mg  ...................  2

F is the force, m is the mass of the object and g is the gravitational force on the object.

Equating equations 1 and 2 gives;

mg =

So that;

g =

⇒ G =

where: g = 9.81 m/, r = 6371 km, M = 5.972 x kg.

G =

  =

  = 6.6675 x N/

The Universal Gravitational Constant (G) is 6.6675 x N/.

= initial pressure

= final pressure = 2

= initial volume

= final volume = /4

= initial temperature = 20 c = 20 + 273 = 293 k

= final temperature = ?

using the equation