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gizmo_the_mogwai [7]
4 years ago
10

Which statement is true about an object that is moving in a circular motion due to centripetal force, F, when the radius of its

circular motion is doubled?
The new force then becomes equal to 2F
The new force then becomes equal to F
The new force then becomes equal to F/2
The new force then becomes equal to F2
The new force then becomes equal to 1/F
Physics
1 answer:
IceJOKER [234]4 years ago
5 0
The force becomes 1/2 F which is the third choice

F=mv^2/r
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The magnitude of the force on the charge by the influence of the magnetic field will be 6.6*10^-3 N

<h3>What is magnetic force?</h3>

Magnetic force, attraction or repulsion that arises between electrically charged particles because of their motion.The magnitude of the magnetic force acting on the charge is given by:

\rm F=qvBsin\theta

where

The magnitude of the charge   q=5.7\ \mu C =5.7\times 10^{-6} \ C

The velocity of the charge        v=4.5\times 10^5\ \frac{m}{s}

The magnitude of the magnetic field   3.2\ mT=0.0032\ T

The angle between the directions of v and B  \theta =90^o-37^o=53^o

By substituting the values we will get:

F=(5.7\times 10^}-6})(4.5\times 10^5)(0.0032)(Sin53^o)

F=6.6\times 10^{-3}\ N

Hence the magnitude of the force on the charge by the influence of the magnetic field will be 6.6*10^-3 N

To know more about Magnetic force follow

brainly.com/question/14411049

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