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A wood block, after being given a starting push, slides down a wood ramp at a constant speed. What is the angle of the ramp above horizontal? Use that Mk= 0.20.
q1. a lighthouse that rises 49 above the surface of water sits on a rocky cliff that extends 19 from its base. a sailor
When the displacement of a mass on a spring is 0.445 of the amplitude of its oscillation, what fraction of the mass's energy is kinetic energy
Two circus performers, Jack and Jill, whose total mass is 120 kg, start a swing which is 5 m long such that initially the rope attached to their swing makes an angle of 36 degrees with the horizontal.
A meter stick with mass 90 grams has a 30 gram particle stuck to its center. What is the rotational inertia of the system
A wheel of mass m = 16kg and radius r = 0:5m is connected to a motor that causes it to attain rotational speed of w = 20rads^-1 in 10s, What is the average torque applied to the wheel by the motor
A 84.0kg skydiver can be modeled as a rectangular "box" with dimensions 24.0cm x 47.0cm x 178cm, What is his terminal speed if he falls feet first
In creating his definition of horsepower, James Watt, the inventor of the steam engine, calculated the power output of a horse operating a mill to grind grain or cut wood.
A 38.8-kg boy, riding a 2.27-kg skateboard at a velocity of +5.22 m/s across a level sidewalk, jumps forward to leap over a wall. What is the skateboard's velocity relative to the sidewalk
Did you firm earn profit or incurred loss at the end and make a small comment on your financial position at the end.
A helicopter is lifting two crate simultaneously. One cable with a mass of 200.kg is attached to the helicopter by a cable. what is the tension in each of the two cables
Use the ideal gas approach to find the thermal velocity, and determine the scaling law based on the resulting equation
describe the various ways that you encounter and utilize different em radiation in your daily life.original work
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