A Sonometer wire of length l vibrates at a
frequency of
350 Hz. when the length of the
wire is increased by 15cm, the
Wire Vibrates at 280 H₂ under
constant tension. Determine l
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The most important difference between a wedge and an inclined plane is a. their size b. their shape c. how they are used d. what they are made of

Karen is running forward at a speed of 9 m/s. she tosses her sweaty headband backward at a speed of 20 m/s. the speed of the headband, to the nearest whole number relative to a stationary observer watching karen

Observations show that interstellar clouds can have almost any shape and