Each Kilogram of Hydrogen That Fuses into Helium Releases About

question 6

Multiple Choice

Each kilogram of hydrogen that fuses into helium releases about 6 * 10¹⁴ joules of energy.How many tons of hydrogen are fused each second to power a massive main-sequence star with a luminosity of 100 L_SUN? (Note that 1 L_SUN = 4 *10²⁶ joule/second and 1 ton= 10³ kg.)

• A) 2*10⁶ tons
• B) 7 * 10⁷ tons
• C) 2 *10⁹ tons
• D) 7 *10¹⁰ tons
• E) 2 *10¹¹ tons

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Definitions:

Teres Minor

A small muscle of the rotator cuff that assists in the rotation and stabilization of the shoulder joint.

Tensor Fascia Lata

A muscle of the thigh that helps in stabilizing and moving the hip and knee, encased in the fascia lata tissue.

Iliopsoas

A major hip flexor muscle group, consisting of the iliacus and psoas major muscles, important for lifting the thigh and trunk stability.

Rotator Cuff

A group of muscles and tendons that surround the shoulder joint, maintaining stability and allowing rotational movement.