Answer:
Electric field at a point ( x , y , z) is .
Explanation:
Given :
Electric potential in the region is ,
We need to find the electric field .
We know , electric field , { Here r is distance }
In coordinate system ,
{
is partial derivative }
Putting all values we get ,
Hence , this is the required solution.
Answer:
0.0316 m
Explanation:
Wok done = Energy change
Work done on the spring = Energy change of the block
Elastic Potential stored = Kinetic energy of the block
x =
x =
x = 0.0316 m
k = spring constant
m = mass of block
v = velocity of the block
x = compression of spring
Answer:
a = 0.3 m/s²
Explanation:
Given: 45 N, 150 kg
To find: a
Formula:
Solution: To find a, divide the force by the weight
A = F ÷ m
= 45 ÷ 150
= 0.3 m/s²
Newtons are derived units, equal to 1 kg-m/s². In other words, a single Newton is equal to the force needed to accelerate one kilogram one meter per second squared.