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a dulcimer string which is supposed to vibrated at 256 hertz actually vibrates at 250 hertz does the string need to be
a woman stands on a scale in a moving elevator her mass is 60 kg and the combined mass of the elevator and scale is an
a hammer thrower accelerates the hammer mass 730 kilogram from rest within four full turns revolutions and releases it
a mountain climber in the process of crossing among two cliffs by a rope pauses to rest she weighs 555 nnbsp she is
an 83 kilogram skier starts at rest 250 meter up the side of a mountain the skier then travels down the slope until the
the tires on a new compact car have a diameter of 20 feet and are warranted for 64000 milesa evaluate the angle through
a solid conducting sphere of radius 200 cm has a charge of 790 microc a conducting spherical shell of inner radius 400
a charged particle has an initial velocity perpendicular to a uniform magnetic field now there is friction with the air
assume you doubled the mass of a clocklsquos pendulum including the rod and the weight at the end while keeping its
a 35 kilogram trunk is pushed 46 meter at constant speed up a 30 degree incline by a constant horizontal force the
while lifeguarding jenny is twirling a whistle in uniform circular motion next to herself the whistle is moving in a
a car moves horizontally with a constant acceleration of 3 ms2 a ball is suspended from the ceiling of the car by a
a one newton pendulum bob is held at an angle from the vertical by a 2 newton horizontal force f find the tension in
a 5 kilogram block is suspended from the ceiling of elevators the elevator accelerates downward at 30 ms squared
the figure 23-32 shows a closed gaussian surface in the shape of a cube of edge length 156 m it lies in a region where
a hot air balloon is ascending straight up at a constant speed of 570 ms when the balloon is 110 meter above the ground
an air-filled parallel-plate capacitor has a capacitance of 14 pf the separation of the plates is doubled and wax is
an object at rest on a flat horizontal surface explodes into two fragments one seven times as massive as the other the
an isolated conductor of arbitrary shape has a net charge of77 x 10-6 c inside the conductor is a cavity within which
a robot probe drops a camera off the rim of a 239 meter high cliff on mars where the freefall acceleration is -37ms2a
a projectile is launched with a speed of 40 ms at an angle of 60o above the horizontal use conservation of energy to
an electric field given by 41middot - 62ynbspnbsp 2 45middot pierces a gaussian cube of edge length 52 m and
a crate is pulled to the right with a force of 746 newton to the left with a force of 1244 n upward with a force of
a single slit is illuminated with 660nm light and the resulting diffraction pattern is viewed on a screen 23 m away1 if
a 10280 gram mass is on a horizontal surface with muk 040 and is in contact with a mass less spring with a force