Find out an angle of the velocity vector

Reference no: EM134080

Question1

An airplane with a speed of 79 m/s is climbing upward at an angle of 48° counter clockwise from the positive x axis. While the plane's altitude is 540 m the pilot releases a package.

(a) Analyse distance along the ground, measured from a point directly beneath the point of release, to where the package hits the earth.

(b) Find out an angle of the velocity vector of the package just before impact.

Question2

A shower stall has dimensions 86.0 cm 86.0 cm 210 cm. suppose the stall acts as a pipe closed at both ends, with nodes at opposite sides. Imagine singing voices range from 130 Hz to 2 000 Hz and let speed of sound in the hot air be 355 m/s. For someone singing in this shower, which frequencies would sound the richest (since of resonance)? For L = 0.860 m

Reference no: EM134080

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