The triple alpha process requires higher temperatures to start and produces less energy for a given mass than the proton-proton chain.

Answer the following statement true (T) or false (F)


True

Physics & Space Science

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One wire, lying on the x-axis, carries a current of 8.0 A in the positive x-direction. Another wire, lying on the y-axis, carries a current of 12 A in the positive y-direction. What is the magnitude of the magnetic field at (x, y) = (8.0 cm, 12.0 cm)?

a.
b.
c.
d.
e.

Physics & Space Science

What is the main constituent of the atmosphere of Venus?

A) Oxygen B) Nitrogen C) Hydrogen D) Carbon dioxide E) Sulfuric acid

Physics & Space Science

Suppose one's hand exerts a force of 12 N upward on a book weighing 10 N. The reaction to the force of the hand on the book is a force of

A. 2 N exerted by the book on the hand. B. 10 N exerted by the Earth on the book. C. 10 N exerted by the book on the hand. D. 10 N exerted by the book on the Earth. E. 12 N exerted by the book on the hand.

Physics & Space Science

The half-life of 131I is 8.04 days. Three days after it was prepared, its activity was 0.50 mCi. How many curies (in mCi) were initially prepared?

a. .60 b. .70 c. .65 d. .55 e. .39

Physics & Space Science