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The tension at which a fishing line snaps is commonly called the line's “strength.” What minimum strength is required for a line that is to stop a salmon of weight 83 N in 14 cm if the fish is initially drifting horizontally at 3.2 m/s? Suppose a constant deceleration.
when a force is moved to a point not along its line of action it can be replaced witha. a resultant force and moment.b.
what is the highest possible theoretical effeciency of a heat engine operating with a hot reseroir of furnace gases at
Red light from three separate sources passes through a diffraction grating with 5.50×105 lines/m. Calculate the first-order diffraction lines of each ot these sources
Fish are hung on a spring scale to decide their mass (most fishermen feel no obligation to report the mass truthfully). How far apart are the half-kilogram marks on the scale? What is the mass of a fish that stretches the spring 5.50 cm?
If the cross-sectional area of the stream decreases by factor of 10× while passing through the dam, can you catch and save the weasel before it moves past the dam (X), down the waterfall?
Sketch the shear force and bending moment diagram and Verify that the support reactions are correct.
A satellite has a mass of 6264 kg and is in a circular orbit 4.32 × 105 m above the surface of a planet. estimate the true weight of the satellite
An infinite line of charge has linear charge density 5.50x 10-12 C/m. A proton (mass 1.67x 10-27 kg, charge +1.60 10-19 C) is 18.0 cm from line and moving directly toward the line at 1.20 x10^3 m/s. How close does the proton get to the line of char..
in a modified tug-of-war game two people pull in opposite directions not on a rope but on a 23.9-kg sled resting on a
A 15 kg cannon ball is firedfrom a cannon with muzzle speed of 867 m/s at an angle of51.3? withthe horizontal. The acceleration of gravity is9.8m/s2 . Use conservation of mechanical energy to findthe maximum height reached by first ball.
The owner of a van installs a rear-window lens that has a focal length of -0.300 m. when the owner looks out during the lens at a person standing directly behind the van, the person appears to be just 0.240m from the back of the van, am appears to be..
A 15-g ball is shot from a spring gun whose spring has a force constant of 600N/m. The spring can be compressed 5 cm. How high can the ball be shot if the gun is aimed vertically
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