R because A-B has 7R but C-d only has 6r so you need to add another r
Answer:
the objects in the universe are evenly placed. This means that a celestial object's gravity may not be able to attract another object. Another reason may be that the stars in solar systems act as points of equilibrium for the planets in the system. Take for example the sun. It maintains the position of the planets in the system and likewise the earth maintains the position of the moon. You can picture it as evenly placed atoms in matter and the subsequent electrons held by the nucleus
The baseball because it has a greater mass and would go farther because it don't have holes for the air to go through and slow it down
Answer: 16N
Explanation:
According to coulombs law which states that the force of attraction between two charges is directly proportional to the product of the charges and inversely proportional to the square of the distance between them. Mathematically,
F = kq1q2/r²
If two charges that are separated by one meter exert 1-N forces on each other, the equation will become
1 = kq1q2/1²
kq1q2 = 1 ... (1)
If the charges are pushed together so the separation is 25 centimeters, the force between them becomes,
F = kq1q2/0.25² (25cm converted to meters)
0.0625F = kq1q2 ... (2)
Dividing equation 1 by 2 to determine the force F on each charges, it becomes;
1/0.0625F = kq1q2/kq1q2
1/0.0625F = 1
0.0625F = 1
F = 1/0.0625
F= 16N
