To solve this problem it is necessary to apply the concepts related to the Force since Newton's second law, as well as the concept of Electromagnetic Force. The relationship of the two equations will allow us to find the magnetic field through the geometric relations of density and volume.
Where,
B = Magnetic Field
I = Current
L = Length
<em>Note: 
is a direct adaptation of the vector relation 
</em>
From Newton's second law we know that the relation of Strength and weight is determined as
Where,
m = Mass
g = Gravitational Acceleration
For there to be balance the two forces must be equal therefore
Our values are given as,
Diameter 
Radius 
Magnetic Field 
From the relationship of density another way of expressing mass would be
At the same time the volume ratio for a cylinder (the shape of the wire) would be
Replacing this two expression at our first equation we have that:
Re-arrange to find I
We have for definition that the Density of copper is 
, gravity acceleration is 
and the values of magnetic field (B) and the radius were previously given, then:
The current is too high to be transported which would make the case not feasible.
The potential energy of the skateboarder at the top of the ramp is
489.1 J.
<h3>Is kinetic energy always equal to potential energy?</h3>
The amount of kinetic energy change and the amount of potential energy change are equal in all physical processes that take place in closed systems. When the kinetic energy rises, the potential energy falls, and vice versa.
Potential energy is the stored energy in any object or system as a result of its position or component arrangement. However, external factors like air or height have no effect on it. The energy of a moving object or system is referred to as kinetic energy.
Potential energy = kinetic energy
Potential energy = 1/2mv²
Potential energy = 1/2 × 67×7.3
Potential energy = 489.1 J.
To know more about kinetic energy visit:
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consider the velocity of the ball towards the wall as negative and away from the wall as positive.
m = mass of the ball = 513 g = 0.513 kg
v₀ = initial velocity of the ball towards the wall before collision = - 14.7 m/s
v = final velocity of the ball away from the wall after collision = 11.3 m/s
t = time of contact with the wall = 0.038 sec
F = average force acting on the ball
using impulse-change in momentum equation , average force is given as
F = m (v - v₀)/t
inserting the values
F = (0.513) (11.3 - (- 14.7))/0.038
F = 351 N
To check progress and direction
Answer: B. argon, neon, xeno
Explanation:
All these elements listed here are part of the group 18 of the periodic table, which is the last group on the right. All these elements are also called 'noble gases'. Their main property is that they have their last energy shell completely filled with electrons: so they do not easily give/receive electrons to make bonds with other elements. For this reason, these elements have the most stable electron configuration, and they do not react with other elements.
