Math Ratios
posted by Lynda .
Force of attraction between two spheres is 3.75 x 10?5 dyne when the spheres are placed 18 cm apart. What is force of attraction when placed 52 cm apartÃ‰

Force is inversely proportional to square of distance between bodies, hence F/3.75x10^5=18^2/52^2
F=(18^2x3.75x10^5)/52^2
=0.46x10^5 dynes
Respond to this Question
Similar Questions

Physics HELP!!
Two iron spheres each have a volume of 10 cm^3 and a mass of 78g. How many electrons must be placed on each sphere so that the electrostatic force of repulsion between them just balances the force of gravitational attraction? 
Physics
My last problem for the day: A) The centers of two 11.00 kg spheres are separated by 0.09 m. What is their gravitational attraction? 
physics  science
 two identical lead spheres have a combined mass of 12kg. the density of lead is 11400 kg m3. find the radius of each sphere. calculate the gravitational force of attraction between the 2 spheres when they are touching. two masses, … 
Physics
1. The electrostatic force of attraction between two small spheres that are 1.0 meter apart is F. If the distance between the spheres is decreased to 0.5 meter, the electrostatic force will be a) F/2 b) 2f c) F/4 d) 4F I know when … 
Physics
Two iron spheres each have a volume of 10 cm^3 and a mass of 78g. How many electrons must be placed on each sphere so that the electrostatic force of repulsion between them just balances the force of gravitational attraction? 
physics
Two small, identical metal spheres contain excess charges of 10.0 x 10^6 C and 6.0 x 10^6 C, respectively. The spheres are mounted on insulated stands and placed 0.40 m apart. Determine the magnitude and direction of the force between … 
Mechanics:Statics
Two 10 kg spheres are placed 500mm apart. Express the gravitational attraction acting on one of the spheres as a percentage to its weight on earth. 
Math Ratios
Force of attraction between two spheres is 3.75 x 10^5 dyne when the spheres are placed 18 cm apart. What is force of attraction when placed 52 cm apart? 
physics
Gravitational Attraction 1. The centers of two 11.80 kg spheres are separated by 0.09 m. What is their gravitational attraction? 
physics
A solid lead sphere of radius 10 m (about 66 ft across!) has a mass of about 57 million kg. If two of these spheres are floating in deep space with their centers 20 m apart, the gravitational attraction between the spheres is only …