To find the magnitude of the normal force, you must express fn in terms of fw since ff is an unknown. using the equations you found in the two previous parts, find an expression for fn involving fw and θ but not ff. cosθff - sinθfn = 0ffsinθ + fncosθ - fw = 0

Astone dropped into a well is heard to strike the water after 8seconds. find the depth of the well if the velocity of sound is 350m/s

Explain earth's motion, using the terms "precession" and "rotation" in your answer.

1. a camcorder has a power rating of 19 watts. if the output voltage from its battery is 7 volts, what current does it use?answer units 2. a 1.5m wire carries a 6 a current when a potential difference of 57 v is applied. what is the resistance of the wire? yourunits 3. a clothes dryer uses about 2 amps of current from a 240 volt line. how much power does it use? yourunits 4.