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A 82.5-kg climber is scaling the vertical wall of a mountain. His safety rope is made of a material that, when stretched, behaves like a spring with a spring constant of 1.82 x 103 N/m. He accidentally slips and falls freely for 0.739 m before the rope runs out of slack. How much is the rope stretched when it breaks his fall and momentarily brings him to rest?
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
A copper wire has a resistance of 0.500 ? at 20.0ºC , and an iron wire has a resistance of 0.525 ? at the same temperature
A pitcher is employing a ballistic pendulum to determine the speed of his fastball. A 3.3 kg lump of clay is suspended from a cord 2.0 m long, find the speed of the pitch
An initially stationary 4.1 kg object accelerates horizontally and uniformly to a speed of 12 m/s in 3.3 s. how much work is done on the object by the force accelerating it
A small electric car overcomes a 244N friction force when traveling 29.6km/hr. The electric motor is powered by ten 12.0V batteries connected in series and is coupled directly to the wheels whose diameters are 49.0cm. The 281 armature coils are re..
Starting from rest, you move with a constant acceleration of 2.1 m/s2 for 13.0 s and then move with an acceleration of -2.1 m/s2 for another 13.0 s. How far do you go during the whole trip
An air-filled toroidal solenoid has a mean radius of 14.6cm and a cross-sectional area of 4.95cm^2. What is the last number of turns that the winding must have
A beam of red light whose frequency is 4.29x10^14, passes through a piece of dense flint glass (n=1.66) in 40x10^-12 seconds, Find the thickness of the glass
A spherical shell of inner radius a and outer radius b is constructed of uniformly magnetized material with magnetization M. (a) Find the equivalent volume and surface current distributions.
a projectile is launched from the ground with an initial speed of 30 m/s at an angle of 40 degrees with respect to the horizontal. How far down range will the rocket have traveled
q1. an airplane is flying with a velocity of 83.0 at an angle of 25.0 above the horizontal. when the plane is a
A small drop of water is suspended motionless in air by a uniform electric field that is directed upward and has a magnitude of 10200 N/C. How many excess electrons or protons reside on the drop
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