Define how fast is the osprey approaching

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Q. A 221-kg projectile, fired with a speed of 105 m/s at a 54 degree angle, breaks into three pieces of equal mass at the highest point of its arc (where its velocity is horizontal). Two of the fragments move with the same speed right after the explosion as the entire projectile had just before the explosion; one of these moves vertically downward and the other horizontally.

Q. An osprey's call is a distinct whistle at 2200 Hz. An osprey calls while diving at you, to drive you away from her nest. You hear the call at 2300 Hz . How fast is the osprey approaching?

Reference no: EM1363697

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