As shown in the figure,a small particle of charge q = -7.0 × 10-6 C and mass m = 3.1 × 10-12 kg has velocity v0 = 9.4 × 103 m/s as it enters a region of uniform magnetic field.The particle is observed to travel in the semicircular path shown,with radius R = 5.0 cm.Calculate the magnitude and direction of the magnetic field in the region. 
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Biometric Device
A device that uses unique biological characteristics, such as fingerprints or iris patterns, for identity verification.
Physical Characteristic
Refers to tangible attributes or features of an object, person, or system that can be observed or measured.
Media
Various means of communication and expression, including text, audio, video, and multimedia content.
Age
A measure of time that an entity or person has been alive or in existence, usually expressed in years.
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