The mass of a moving object increases, but its speed stays the same. What happens to the kinetic energy of the object as a resul
2 answers:
The correct answer is
B It increases.
In fact, the kinetic energy of a moving object is given by
where m is the mass of the object and v is its speed. We see that the kinetic energy is proportional to the mass and proportional to the square of the speed: in this problem, the speed of the object remains the same, while its mass increases, therefore the kinetic energy will increase as well.
B It increases.
In fact, the kinetic energy of a moving object is given by
where m is the mass of the object and v is its speed. We see that the kinetic energy is proportional to the mass and proportional to the square of the speed: in this problem, the speed of the object remains the same, while its mass increases, therefore the kinetic energy will increase as well.
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Answer:
Maximum torque on the wire is
Explanation:
It is given that,
Diameter of the wire, d = 11.1 cm = 0.111 m
Radius of wire, r = 0.0555 m
Magnetic field,
Current, I = 5 A
We need to find the maximum torque on the wire. Torque is given by :
Torque is maximum when,
or
So, the maximum toque on the wire is . Hence, this is the required solution.