Answer:
A=0.80
Explanation:
a=2×100/time^2. a=2×100/15.86^2. = a=0.80
Answer:
F = 2.49 x 10⁻⁹ N
Explanation:
The electrostatic force between two charged bodies is given by Colomb's Law:

where,
F = Electrostatic Force = ?
k = colomb's constant = 9 x 10⁹ N.m²/C²
q₁ = charge on proton = 1.6 x 10⁻¹⁹ C
q₂ = second charge = 1.4 C
r = distace between charges = 0.9 m
Therefore,

<u>F = 2.49 x 10⁻⁹ N</u>
Answer: rate of accelerations is same a=g
Explanation:
Answer:
The rate of one is 2.1 mph and the rate of the other is 4.9 mph
Explanation:
Let the rate of one be y mph
The rate of the other = (y+2.8) mph
Total rate = y + y + 2.8 = (2y+2.8) mph
Total rate = distance apart/time
2y + 2.8 = 14/2
2y + 2.8 = 7
2y = 7 - 2.8
2y = 4.2
y = 4.2/2 = 2.1 mph
The rate of the other is y+2.8 = 2.1+2.8 = 4.9 mph