The 3 parts of the lever is:
1. Fulcrum lever. The fulcrum lever is the support point on which a lever pivots.
2. Load lever. A load lever is the object that is being moved by a lever.
3. Effort lever. Last but not least, the effort lever is the force that is needed to move an object
:)
Answer:
We would have to locate the charge at the center of the triangle.
Explanation:
I tried my best to make geometric arguments, you can see the attached picture if it helps.
Let's say the triangle has three corners names 1, 2 and 3 as seen in the image. Let's determine the electric field at the center of the triangle. We can see that the x-component of electric field produced by the charge at 1 and the one produce by the charge at 2 will cancel each other out because they have the same but opposite values. The y components on the other hand are equal and are added. The magnitude of all three electric fields are the same (because each corner is at equal distance from the center and all three charges are equal, see the formula for the electric field: where is the distance between the point of observation and the charge). Thus lets call E the magnitude of the electric field produced by any of the charges.
We can clearly see that the y-component of the electric filed produced by 1 is , the same goes for the one produced by the charge at 2, knowing that , we have that the total field due to the charges at 1 and 2 are equal to E in the positive y-direction. The field produced by the third charge is clearly -E in the negative y-direction thus canceling the contribution from 1 and 2. The total electric field at the center of the triangle is zero, this also mean that any charge placed at that point will not feel any force.
Answer:
The force is
Explanation:
From the question we are told that
The diameter of the wire is
The pressure is
Generally the radius of the of the wire is
=>
=>
The Area is evaluated as
=>
=>
Generally pressure is mathematically represented as
=>
=>
=>
Answer:
After the bullet emerges the block moves at 0.99 m/s
Explanation:
Given;
mass of bullet, m₁ = 22 g = 0.022 kg
initial speed of the bullet, u₁ = 240 m/s
final speed of the bullet, v₁ = 150 m/s
mass of block, m₂ = 2.0 kg
initial speed of the block, u₂ = 0
Let the final speed of the block = v₂
Apply principles of conservation of linear momentum;
m₁u₁ + m₂u₂ = m₁v₁ + m₂v₂
0.022 x 240 + 2 x 0 = 0.022 x 150 + 2v₂
5.28 = 3.3 + 2v₂
5.28 - 3.3 = 2v₂
1.98 = 2v₂
v₂ = 1.98 / 2
v₂ = 0.99 m/s
Therefore, after the bullet emerges the block moves at 0.99 m/s
Auroras are frequently seen : B. After solar flares
The Aurora is created by an ongoing influx of particles into the Earth's existing magnetic field,
This particles originated from the Sun as part of Solar wind
hope this helps