Just divide the both, you will get the answer!
does it sound rude?
im sorry for that!
In order to balance the stick on the pivot, the total "moments" must be equal on both sides. A "moment" is (a weight) x (its distance from the center).
for the 5N weight: Moment = (5N) x (3 cm) = 15 N-cm
for the 12N weight: Moment = (12N) x (5 cm) = 60 N-cm
Sum of the moments trying to pull the stick down on that side = 75 N-cm
Whatever we hang on the other side has to provide a moment of 75 N-cm in the other direction. We have a 25N weight. Where should we hang it ?
(25N) x (distance from the pivot) = 75 N-cm
Distance from the pivot = (75 N-cm) / (25 N)
<em>Distance from the pivot = 3 cm </em>
Due to the fact that for every action there is an equal reaction for every turn on the screw the screw will exert energy equal to the amount you gave
Answer:
Explanation:
The momentum of the first piece = m v =- m x 31 i kg m/s in - x direction direction
The momentum of the second piece = -m x 31 j kg m /s in Y - direction
Total momentum = - 31 m( i + j )
To conserve momentum , the third piece must have momentum equal to this
and opposite to it
So momentum of the third piece = 3m x V = 31 m ( i +j )
V = 31/3 ( i + j ) =
Magnitude of velocity V = √2 x 31/ 3 = 14.6 m / s
Its direction will be towards the vector i + j ie 45° from x - axis in positive direction
Explanation:
To understand how a differential switch works, you first need to know how an electrical circuit works. If we have a circuit where a current intensity enters, it travels through different loads that may be the electrical elements of the home, the intensity of the electric current coming out of the circuit is the same as the one I enter.
Intensity is lost if, for example, a person is electrocuted, as part of the circuit current is lost by ground. The differential switch compares through the magnetic fields produced, the current coming in and the current coming out of the circuit. Being magnetic fields produced by the same intensity but by currents with opposite direction, these are canceled. In the event that the intensities are different there is a result of magnetic field, which causes a knob that cuts the electrical circuit to move.
