What is the gravitational attraction between mass a (200kg) and mass b (500kg)? 12m distance between the two masses.

Fg = 4.63×10^-8 N

Explanation:

The gravitational attraction between two masses m1 and m2 is given by:

Fg = G×m1×m2/(r^2) , where m1 = 200kg ,m2 = 500kg,G is gravitational                                                                                         constant  

then:

Fg = [(6.67408×10-11)(200)(500)] /(12^2)        

    = 4.63×10-8 N  

therefore, the gravitational attraction between the mass is 4.63×10-8 N.                                                                                                                                                                                                

note: the given question is incomplete.

complete question is given below.

which is an example of kinetic energy?

a. the energy stored in ethanol  

b. a hockey puck sliding across the ice  

c. a compressed spring  

d. a ball sitting at the top of a ramp

solution: the kinetic energy is the energy posses by the virtue of the motion of the object.

in the given options, a, c and d are the example of potential energy because it is the energy posses by the virtue of the rest of the object. but option b has the kinetic energy as the object is in motion.

hence, a hockey puck sliding across the ice   is the apex example of kinetic energy.

so, the option (b) a hockey puck sliding across the ice   is the correct option.