Almost all of our atmospheric gases lie in the
A) ozone layer. B) mesosphere. C) ionosphere. D) troposphere. E) stratosphere.
D
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In the context of the electromagnetic spectrum, which of the following types of electromagnetic radiation has the smallest wavelength?
A) X-rays B) Visible light C) Radio waves D) Gamma rays
The largest satellite orbiting a terrestrial planet is ____________________
Fill in the blank(s) with correct word
Half-way to the center of a completely hollow planet with a thin uniform shell, your weight would be
A) one-quarter of your weight on the surface. B) one-half of your weight on the surface. C) three-quarters of your weight on the surface. D) the same as at the surface. E) zero.
Rotational Kinetic Energy: A small ball is tied to one end of a light 2.5-m wire, and the other end of the wire is hooked to the ceiling. A person pulls the ball to the side until the wire makes an angle of 35° with the plane of the ceiling and then gently releases it. What is the angular speed of the ball, in rad/s, as it swings through its lowest point?
Fill in the blank(s) with the appropriate word(s).