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Determine the tension developed in cables AB ,AC , and ADrequired for equilibrium of the 300-lb crate.
You plan to throw stones by using a sling of length 0.5 m which you whirl over your head. Suppose you wish to throw a stone a distance of 27 m. What must be the centripetal acceleration of the stone
A 3.60 {rm m}-long, 430 {rm kg} steel beam extends horizontally from the point where it has been bolted to the framework of a new building under construction. A 66 {rm kg} construction worker stands at the far end of the beam.
The drill bit of a variable-speed electric drill has a constant angular acceleration of 5.21 rad/s2. The initial angular speed of the bit is 5.12 rad/s. what is the bit's angular speed
two ants race across a table 52 cm long. one travels at 4.72 cms and the other at 3 cms. when the first one crosses the
A 1000 kilogram automobile rounds a curve of a radius of 70 meter at 23m/s, and the banking angle is 38o for no friction to be between the road and tires. Then what banking angle must the curve have
Light waves with two different wavelengths, 632 nm and 474 nm,pass simultaneously through a single slit whose width is 7.15× 10-5 m and strike a screen 1.20 m from the slit.Two diffraction patterns are formed on the screen.
A tow truck is pulling a car out of a ditch by means of a steel cable that is 10.6 meter long and has a radius of 0.50 centimeter. Determine how much has the cable stretched
A 1.83 kg book is placed on a flat desk. Suppose the coefficient of static friction between the book and the desk is 0.442 and the coefficient of kinetic friction is 0.240. How much force is needed to begin moving the book
If wind blows at 32 m/s over a house, what is the net force on the roof if its area is 238 m2 and is flat
a car is parked on a cliff overlooking the ocean on an incline that makes an angle of 24.0deg below the horizontal. the
A 1.65kg chicken is blown into a wall by a strong gust of wind and held there. What is the minimum force of the gust of wind
A 8.80-kg block of ice, released from rest at the top of a 1.33m--long frictionless ramp, slides downhill, reaching a speed of 2.61m/s at the bottom. What would be the speed of the ice at the bottom
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