The distance across the ocean over which a steady wind blows is the:
Ans: fetch
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Why must radio dishes be built so large?
What will be an ideal response?
Two speakers in a stereo emit identical pure tones. As you move around in front of the speakers, you hear the sound alternating between loud and zero. This occurs because of __________
Fill in the blank(s) with correct word
The density of aluminum is 2700 kg/m3. If transverse waves travel at in an aluminum wire of diameter what is the tension on the wire?
A) 65 N B) 39 N C) 52 N D) 78 N
John throws a baseball from the outfield from shoulder height, at an initial velocity of 41.5 m/s at an initial angle of 40.0° with respect to the horizontal. The ball is in its trajectory for a total interval of 5.00 s before the third baseman catches it at an equal shoulder-height level. (Assume air resistance negligible.) What is the ball's horizontal displacement?
a. 159 m b. 267 m c. 174 m d. zero e. 495 m