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a 8740 kg hiker has ascended to a height of 1867 m in the process of climbing mt washington by what percent has the
a lamp hangs vertically from a cord in a descending elevator that decelerates at 14 ms2a if the tension in the cord is
the high-speed winds around a tornado can drive projectiles into trees building walls and even metal traffic signs in a
an electron with a speed of 16 times 107 ms moves horizontally into a region where a constant vertical force of 50
a projectile is fired at v0 3940 ms at an angle of 636o with respect to the horizontal assume that air friction will
as the driver steps on the gas pedal a car of mass 1 180 kg accelerates from rest during the first few seconds of
consider an lc circuit in which the inductance is 345 mh and the capacitance is 013 muf what is the resonant angular
a 200g hockey puck is launched up a metal ramp that is inclined at a 30deg angle the coefficients of static and kinetic
a wire is formed into a circle having a diameter of 112 cm and is placed in a uniform magnetic field of 322 mt the wire
an 805 kg mass moving east at 137 ms on a frictionless horizontal surface collides with a 113 kg mass that is initially
a circuit consists of an idealized 166 mh inductor and a 458 muf capacitor what is the natural linear frequency of the
to stretch a certain spring by 300 from its equilibrium position requires 950 of worka what is the force constant of
a block of ice with mass 200 slides 0895 down an inclined plane that slopes downward at an angle of 395 below the
a frictionless roller coaster car of mass m tops the first hill with speed v0 at height h what is the speed of the car
a constant force of magnitude f makes an angle measured counterclockwise with the positive x direction as it acts on
a regional airline flight consists of two legs with an intermediate stop the airplane flies 410 due north from airport
a 30-kg girl is bouncing on a trampoline during a certain interval after she leaves the surface of the trampoline her
a skier slides horizontally along the snow for a distance of 25 m before coming to rest the coefficient of kinetic
an asteroid is moving along a straight line a force acts along the displacement of the asteroid and slows it down the
in the bohr model of the hydrogen atom an electron moves in a circular path around a proton the speed of the electron
a fighter jet is launched from an aircraft carrier with the aid of its own engines and a steam-powered catapult the
a plane drops a hamper of medical supplies from a height of 5460 m during a practice run over the ocean the planes
when our sun runs out of fuel it will eventually become a white dwarf star with about the same radius as the earth
a person pulls a toboggan for a distance of 500 m along the snow with a rope directed 250deg above the snow the tension
using focused laser light optical tweezers can apply a force of about 14pn to a 11mu m diameter polystyrene bead which