What part of the thermosphere is electrically charged?

the ionosphere

the hemisphere

the aurora sphere

the troposphere

An increase in the greenhouse effect causes an increase in

What is big and green with horns and jumps high?

If you sight Polaris with an astrolabe and determine its altitude is 20° above the horizon, then what does this tell you about your position on the Earth?

What's faster a slow car or a fast feather?

What was the experiment carried out by Hershel & Ritter.

A 4.2 cm diameter circular loop of wire is in a 1.14 T magnetic field. The loop is removed from the field in 0.18 s. Assume that the loop is perpendicular to the magnetic field. What is the average induced emf?

When an ocean plate converges with another plate, what is created on the seafloor at the line of convergence?

Calculate the angle of refraction of 30.0° light shines from water into ice. The indices of refraction for water and ice are 1.36 and 1.31, respectively. A) 19.8° B) 31.3° C) 40.9° D) 64.0°

What is the length of a simple pendulum with a period of 2.0 s?

How many electrons are necessary to produce 1.0 c of negative charge? (e = 1.60 Ã 10-19 c) ?