Formula for gravitational force shows it is inversely proportional to the distance between two masses squared this is similar to the electrostatic force thay changes according to the separation squared.
The difference is that gravity is proportional to the product of the two masses. Electro static force is proportional to the product of the two charges.
Answer:
0.2s
Explanation:
Given parameters:
Speed = 25m/s
Distance = 5m
Unknown:
Time taken for Juan to get to his work = ?
Solution:
To solve this problem we use the relationship below:
Speed =
Time =
So;
Time =
= 0.2s
Nuclear size are measured in a unit called fermi
Magnetism at the centre of a bar magnet is zero, because there is no magnetism at all in the centre
Hope this helps :)
PE is the energy acquired by a body due to its height ! While KE is the energy acquired by the body due to its motion !
KE+PE = mechanical energy and thus mechanical energy is always conserved due to the conservation of energy which states that energy is neither created nor destroyed but only transformed !
Explanation:
An object is attached to the spring and then released. It begins to oscillate. If it is displaced a distance 0.125 m from its equilibrium position and released with zero initial speed. The amplitude of a wave is the maximum displacement of the particle. So, its amplitude is 0.125 m.
After 0.800 seconds, its displacement is found to be a distance 0.125 m on the opposite side. The time period will be, 
We know that the relation between the time period and the time period is given by :


f = 0.625 Hz
So, the frequency of the object is 0.625 Hz. Hence, this is the required solution.