An Alpha Particle (Mass = 6

question 53

Multiple Choice

An alpha particle (mass = 6.68 *10^-27 kg) is emitted from a radioactive nucleus with an energy of 6.22 MeV. How fast is the alpha particle moving in m/s? (1 MeV = 1.6 *10^-13 J)

• A) 3.70 * 10⁶ m/s
• B) 1.73 * 10⁷ m/s
• C) 1.55 *10⁷ m/s
• D) 1.85 * 10⁶ m/s

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Definitions:

Ureter

A tube that carries urine from the kidneys to the bladder.

Urinary Bladder

A hollow muscular organ that stores urine from the kidneys before it is excreted from the body.

Podocytes

Specialized cells in the kidney that form part of the filtration barrier, wrapping around the capillaries of the glomerulus to prevent the passage of large molecules.

Filtration Slits

Gaps between podocyte extensions in the kidney that filter blood, allowing certain molecules to pass while retaining larger ones.