What is the correct definition of a fracture?
1 answer:
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Answer:
<em>The object-Earth system is open</em>
Explanation:
<u>Accelerated Motion </u>
When an object is released in free air (with no other forces than the gravity), it describes a free-fall motion and the formulas include the acceleration of gravity as part of the calculations. But when there is another external force, then the acceleration is not the gravity, but the result of the net force exerted on the mass of the object.
By definition, an open system includes the exchange of energy from and to the surroundings, that is why all systems surrounding our planet are considered as open systems. In our case, the object is interacting with the planet's gravity and there is some other external force, which will be computed later. The object-Earth system is open.
If the object starts from rest, its initial speed is zero, and
where a is the acceleration and t is the time. The distance traveled is given by :
From the two above equations, we find that:
Solving for a
It means the net force is
The object's weight is
This means there is some external force acting upwards delaying the object's fall of a magnitude of
Answer:
The maximum torque is
Explanation:
From the question we are told that
The length of the wire is
The current flowing through the wire is
The magnetic field is
The maximum torque is mathematically evaluated as
Where is the magnetic dipole moment which is mathematically represented as
Where is the number of turns which from the question is 1
substituting values
Now