Suppose that two objects attract each other with a gravitational force of 50N. If the mass of both objects was tripled, and if the distance between the objects was doubled, then what
would be the new force of attraction between the two objects?

112.5 N

Explanation:

50 = GMm/r^2

Let F be the new force of attraction

F/50 = ( G(3M)(3m)/(2r)^2 ) / (GMm/r^2)

[Elimiating G,M,m,r]

F = 112.5 N

kinetic

i'm so sorry if this is wrong i'm only in 6th grade xd

a.metals can become magnetic if they have many spinning electrons that create magnetic fields.d.only some metals are attracted by magnets; these metals are called ferromagnetic.

d.wrapping an insulated wire around a metal with ferromagnetic properties and applying an electric current.