<h2> F = k×
</h2>
Explanation:
- The attractive or repulsive forces which act between any two charged species is an electric force.
- The electric force depends on the distance between the charged species and the amount of charge which can be calculated by the formula given as follows
F = k×
where, K is coulombs constant, which is equal to - 9 x10^9 
- The unit for K is newtons square meters per square coulombs.
- This is known as Coulomb's Law.
Explanation:
a chip on your shoulder is an example
Answer:
The stress S = 1935 [Psi]
Explanation:
This kind of problem belongs to the mechanical of materials field in the branch of the mechanical engineering.
The initial data:
P = internal pressure [Psi] = 90 [Psi]
Di= internal diameter [in] = 22 [in]
t = wall thickness [in] = 0.25 [in]
S = stress = [Psi]
Therefore
ri = internal radius = (Di)/2 - t = (22/2) - 0.25 = 10.75 [in]
And using the expression to find the stress:
![S=\frac{P*D_{i} }{2*t} \\replacing:\\S=\frac{90*10.75 }{2*0.25} \\S=1935[Psi]](https://tex.z-dn.net/?f=S%3D%5Cfrac%7BP%2AD_%7Bi%7D%20%7D%7B2%2At%7D%20%5C%5Creplacing%3A%5C%5CS%3D%5Cfrac%7B90%2A10.75%20%7D%7B2%2A0.25%7D%20%5C%5CS%3D1935%5BPsi%5D)
In the attached image we can see the stress σ1 & σ2 = S acting over the point A.
Answer:
Speed is a measure of how quickly an object moves from one place to another. It is equal to the distance traveled divided by the time.
Answer:
greater than your true weight
Explanation:
When going up in an elevator the acceleration of the elevator is added to the acceleration due to gravity. This will increase the reading on the scale.
The expression of the resultant weight will be
where,
m = Mass of the person
g = Acceleration due to gravity = 9.81 m/s²
a = Acceleration of the elevator.
Hence, the reading on the scale is <u>greater than your true weight.</u>
