A Proton, Mass 1

question 9

Multiple Choice

A proton, mass 1.67 * 10 ^{- 27} kg and charge +1.6 *10 ^{- 19} C, moves in a circular orbit perpendicular to a uniform magnetic field of 0.50 T. Find the time for the proton to make one complete circular orbit.

• A) 8.7 *10 ^{- 8} s
• B) 1.3 *10 ^{- 7} s
• C) 9.8 *10 ^{- 7} s
• D) 4.3 *10 ^{- 8} s

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Definitions:

Declaration

A statement in programming that specifies the identifier and type of a variable or function, without necessarily allocating space or defining its value.

Autoboxing

The automatic conversion that the Java compiler makes between the primitive types and their corresponding object wrapper classes.

Integer Num

Integer Num usually refers to a variable or value that is of the 'integer' data type, representing whole numbers without fractional parts.

Equals Method

A method used to compare two objects for equality, typically overridden to define equality based on object state.