Tom's mass is 70.0 kg, and Sam's mass is 50.0 kg. Tom and Sam are
standing 20.0 m apart on the dance
floor. Sam looks up and sees Tom.
Sam feels an attraction. Supposing
that the attraction is gravitational,
find its size. Assume that both Tom
and Sam can be replaced by
spherical masses.
5.84Å~10−10 N

5.84×10^-10 N

Explanation:

F=G×ms×mr/r^2

ms=50 kg

mr= 70 kg

r=20 m

F=6.67×10^-11 N×m^2/kg^2×50 kg×70 kg/(20 m)^2

F=5.84×10^-10 N

the amount of current in the coil

  the unit of the measure =

explanation:

  the property that is quantified by the energy needed per of material to raise the temperature by one.

  si unit of energy = joule (j)

  si unit of temperature = kelvin (k)

  si unit of mass of material = kilogram (kg)

the property that is quantified by the energy needed per of material to raise the temperature by one is called specific heat.

the unit of specific heat is