As you increase in altitude in the atmosphere, the speed of sound _________

Fill in the blank(s) with correct word


decreases

Physics & Space Science

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A small sphere attached to a light rigid rod rotates about an axis perpendicular to and fixed to the other end of the rod. Relative to the positive direction of the axis of rotation, the angular positions of the sphere are negative, its angular velocity is negative, and its angular acceleration is positive. The sphere is

a. rotating clockwise and slowing down. b. rotating counterclockwise and slowing down. c. rotating clockwise and speeding up. d. rotating counterclockwise and speeding up. e. first rotating counterclockwise and then clockwise.

Physics & Space Science

The Sun's radius is one astronomical unit by definition

Indicate whether the statement is true or false

Physics & Space Science

In general, when we refer to the time of the "Ice Age" we are referring to the

A) Jurassic. B) Tertiary era. C) Pleistocene epoch. D) Pliocene era.

Physics & Space Science

Relative to a stationary observer, a moving clock

A. always runs slower than normal. B. always runs faster than normal. C. keeps its normal time. D. Any of these choice could be correct depending on the relative velocity.

Physics & Space Science