Answer:
The speed of Lilac is 0.422 times of the speed of light.
Explanation:
Given that,
Length of the spaceship Lilac at rest, 
When Lilac passes Earth, observers there measure its length to be 688 m, L = 688 m
We need to find the speed of light is Lilac moving with respect to Earth. The formula of length contraction is given by :
So, the speed of Lilac is 0.422 times of the speed of light.
In the first shell there can be a maximum of 2 electrons, then 8o in the second one and 8 in the third one.
Answer:
Gravity only becomes noticeable when there is a really massive object like a moon, planet or star. We are pulled down towards the ground because of gravity. The gravitational force pulls in the direction towards the centre of any object.
Answer: Conditions for equilibrium require that the sum of all external forces acting on the body is zero (first condition of equilibrium), and the sum of all external torques from external forces is zero (second condition of equilibrium). These two conditions must be simultaneously satisfied in equilibrium
Explanation: Hope this helped
Answer:
Explanation:
As we know that due to a thin sheet electric field at a point near its surface is given as
now we have two sheets of opposite charges so the net electric field is double that of field due to one sheet
so we have
now we have
