At what point is the Moon farthest away from Earth?

The resistivity of the material of a wire is 1.76 × 10-8 ?m. If the diameter of the wire is 2 × 10-3 m and its length is 2 m, what is its resistance?

A) 112 ? B) 11.2 ? C) 1.12 ? D) 0.112 ? E) 0.0112 ?

The most circular of the elliptical galaxies are class

A. Sb. B. E7. C. Irr 1. D. E0. E. Ea.

Emission nebulae like M42 occur only near stars that emit large amounts of

A) infrared heat. B) X-rays and gamma rays. C) microwaves. D) ultraviolet radiation. E) visible light.

If you cross a vector with itself, the resultant will be a unit vector

Indicate whether the statement is true or false