By just smiling. It normally makes you look more happy.And if your happy that's positive body languge
<span>gravitational force = 0.1 mg-wt. = 0.1 * 10^-6 * 9.8 N = Gm1m2/r^2
m1 = 40 kg m2 =15 kg and r = 0.2 m
Put in and find G</span>
Answer:
0.003
Explanation:
3 is in grammes so you divide by 1000
<span>One type of substance is a >>element<<, which contains only one type of atom.</span>
Answer:
D) ¼ as large
Explanation:
The magnitude of the electric force between two charges is

where
k is the Coulomb's constant
q1 and q2 are the magnitudes of the two charges
r is the separation between them
From the formula we see that the magnitude of the force is inversely proportional to the square of the distance.
In this problem, the distance is doubled:

So the new force will be

So the force will decrease to 1/4 of its original value.