A man walks 30 m to the west, then 5 m to the east in 45 seconds.
What is his average speed?

Awoodchuck would chuck all the wood he could chuck if a woodchuck could chuck wood.

Jenny and fred both play a long note on their trombones. a stationary observer hears the sound increasing and decreasing repeatedly in loudness. which of these must be true? the sound waves from the two trombones have slightly different frequencies.the sound waves from the two trombones have the same frequency.the sound waves from the two trombones have slightly different amplitudes.the sound waves from the two trombones have the same wavelength.the sound waves from the two trombones have slightly different velocities.  lolthe answer is          the sound waves from the two trombones have slightly different frequencies.

The answer is a blackhole. hope this !