The speed of the pin after the elastic collision is 9 m/s east.
<h3>
Final speed of the pin</h3>
The final speed of the pin is calculated by applying the principle of conservation of linear momentum as follows;
m1u1 + mu2 = m1v1 + m2v2
where;
- m is the mass of the objects
- u is the initial speed of the objects
- v is the final speed of the objects
4(1.4) + 0.4(0) = 4(0.5) + 0.4v2
5.6 = 2 + 0.4v2
5.6 - 2 = 0.4v2
3.6 = 0.4v2
v2 = 3.6/0.4
v2 = 9 m/s
Thus, The speed of the pin after the elastic collision is 9 m/s east.
Learn more about linear momentum here: brainly.com/question/7538238
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Draw a square that is meant to represent you, draw an up arrow, a down arrow, a right arrow, and a left arrow. The Left arrow is FORCE FRICTION which is the floor adding friction against you, the Right arrow is FORCE APPLIED, which is the force that your legs are using to cause you to move, the Up arrow is FORCE NORMAL, which is the force that always act on something that is affected by gravity, and the Down arrow is FORCE GRAVITY. These are the four forces acting on you as you walk to the kitchen
I will try to define the net problem, without the intermediate message between the message as:
<em>An air-filled toroidal solenoid has a mean radius of 15.5 cm and a cross-sectional area of 4.95 cm2 . When the current is 12.5 A , the energy stored is 0.390 J . </em>
<em>Part A: How many turns does the winding have?</em>
To solve the problem it is necessary to apply the concepts related to the storage of energy in an inductor and how it is possible to calculate from the inductance the number of turns of the system.
By definition we know that the energy stored in an inductor is given by,
Where,
L = Inductance
I = Current
In this way, clearing the Inductance in the previously given equation we have to
In a system the inductance is given by
Where l represents the length, however as we deal with the perimeter of a circle we have,
Replacing our values we have
Re-arrange to find N,
Therefore the winding have 2211turns
Yes, carbon dioxide should be considered a pollutant. The emissions from fossil fuels have set the natural cycle of CO2 off kilter. With the destruction of massive amounts of forests and natural habitats, the population of plants is going down, but the emissions of man-made CO2 are going up.
Answer:
Aufbau Principle
Explanation:
According to the The Aufbau Principle, the electrons will initialize the filling process of the orbital by filling the available orbitals with the lowest energy first prior to the filling the available orbitals of higher energies.
Since, in order to gain stability, each and every electron in an atom tends to minimize its energy, therefore, the energy of the atom as a whole is also minimum.