Author Question: The fuel for nuclear fusion in the center of the Sun is A) H. B) He. C) O. D) ... (Read 6 times)

fahad · **on:** Jul 29, 2018

The fuel for nuclear fusion in the center of the Sun is

A)

H.
B)

He.
C)

O.
D)

U.
E)

any radioactive material.

Question 2

Jill is farsighted and cannot see objects clearly that are closer to the eye than 80.0 cm. What is the focal length of the contact lenses that will enable her to see objects at a distance of 25.0 cm from her eyes?

A)

+36.4 cm
B)

-36.4 cm
C)

-21.2 cm
D)

+21.2 cm
E)

+32.5 cm