Classic mechanics and atomic physics
Answer:
0.3 N
Explanation:
Electromagnetic force is F= Kq1q2/r^2, where r is the distance between charges. If r is doubled then the force will be 1/4F which is 0.3 N.
Answer:
The force of gravity depends directly upon the masses of the two objects and inversely on the square of the distance between them.This means that the force of gravity increases with mass but decreases with increasing distance between objects
Answer
mass of a person is 80 kg
a) Mexico City, Mexico
acceleration due to gravity in mexico = 9.776 m/s²
weight = 80 × 9.776 = 782.08 N
b) Cape Town, South Africa
acceleration due to gravity in cape town = 9.796 m/s²
weight = 80 × 9.796 = 783.68 N
c) Tokyo, Japan
acceleration due to gravity in cape town = 9.798 m/s²
weight = 80 × 9.798 = 783.84 N
d) Chicago, IL
acceleration due to gravity in cape town = 9.803 m/s²
weight = 80 × 9.803 = 784.24 N
e) Copenhagen, Denmark
acceleration due to gravity in cape town = 9.815 m/s²
weight = 80 × 9.815 = 785.2 N
The answer is B.
hope this helps!
