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A 565 N mountain climber moves across a rope strung across a canyon. When she is more than halfway across, she notices the rope makes a 10.0O angle (from horizontal) behind her and a 25.0O angle (from horizontal) ahead of her. What are the tensions in the rope in front and behind her?
q1. the longest string a thick metal wire on a particular piano is 3.0 m long and has a tension of 300.0 n. it vibrates
An electromagnetic wave in a vacuum has a magnetic field with a magnitude of 1.29 × 10-6 T. What is the intensity S of the wave
A person weighs 670N steps onto a spring scale in the bathroom, and the spring compresses by 0.79 cm. What is the spring constant? And what is the weight of another person who compresses the spring by 0.34 cm.
When a person inhales, air moves down the bronchus (windpipe) at 14 cm/s. determine the pressure drop in the constriction
35.0g of copper pellets are removed from a 300?C oven and immediately dropped into 90.0mL of water at 25.0?C, What will the new water temperature be
illustrate what minimum projection angle would achieve this result? What maximum pro- jection angle would achieve this result?
A Coast Guard cutter detects an unidentified ship at a distance of 20.2 km in the direction 16.7° east of north. The ship is traveling at 24 km/h on a course at 40.1° east of north. The Coast Guard wishes to send a speedboat to intercept the vesse..
Two uniform infinite sheets of electric charge densities 18.0 C/m2, Find the magnitude of the electric field everywhere
A rocket in a fireworks display explodes high in the air. The sound spreads out uniformly in all directions. The intensity of the sound is 2.30 10-6 W/m2 at a distance of 110 m from the explosion. Find the distance from the source at which the int..
The normal force equals the magnitude of the gravitational force as a roller coaster car crosses the top of a 49-m-diameter loop-the-loop
A wire 3.00 m long and 0.450 mm2 in cross-sectional area has a resistance of 39 at 20°C. what is the temperature coefficient of resistivity
A solenoid is 1.6 m long and has 530 turns per meter. what is the cross sectional area of this solenoid if it stores .31 J of energy when it carries I=14A
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