A Proton Moving Eastward with a Velocity of 5

question 11

Multiple Choice

A proton moving eastward with a velocity of 5.0 × 10³ m/s enters a magnetic field of 0.20 T pointing northward. What is the magnitude and direction of the force that acts on the proton?

• A) 0 N
• B) 1.6 × 10^-16 N upwards
• C) 1.6 × 10^-16 N downwards
• D) 1.1 × 10^-16 N eastwards
• E) 4.4 × 10^-16 N westwards

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Definitions:

Cholecystokinin

A hormone secreted by the small intestine that stimulates the release of digestive enzymes from the pancreas and bile from the gallbladder.

Leptin

A hormone produced by fat cells that helps to regulate body weight by inhibiting hunger and thereby reducing food intake.

Insulin

A substance secreted by the pancreas that controls levels of sugar in the blood by aiding in the absorption of glucose into the body's tissues.

Oxytocin

A hormone and neurotransmitter often called the "love hormone" for its role in social bonding, childbirth, and maternal behaviors.