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three horizontal forces act on a packing crate on a horizontal surface 600 n to the left 200 n to the right and
one long wire carries current 200 a to the left along the x axis a second long wire carries current 800 a to the right
a golfer hits a golf ball giving the ball an initial speed of 415 ms at an angle of 350 degrees to the horizontal at
a place kicker must kick a football from a point 34 m about 37 yd from the goal and the ball must clear the crossbar
at t0 a grinding wheel has an angular velocity of 210rads it has a constant angular acceleration of 350rads2 until a
an unknown resistor r is connected to a 150 resistor and the combination is attached to an ideal battery when the two
a mass hangs on the end of a massless rope the pendulum is held horizontal and released from rest when the mass reaches
two stars in a binary system orbit around their center of mass the centers of the two stars are 617x1011 m apart the
you are looking straight down on a magnetic compass that is lying flat on a table a wire is stretched horizontally
suppose that a 700kg box is pulled by 400n firce at an angle of 30 degree to the horizontal the coefficient of sliding
a mass hung on a string that is wrapped around an axle on a wheel produces a tension in the string of 565 n the axle
two cylindrical artificial bones are made of the same material and length one with twice the radius as the other when
an elevator is traveling upward at constant speed of 24 ms at time t 0 s an object is dropped down the elevator shaft
a water tower supplies water through the plumbing in a house a 254-cm-diameter faucet in the house can fill a
a ball is thrown downward from the roof of a 24 m tall building with an initial speed of 5 msa use energy principles to
a flywheel comprises a uniform circular disk with a mass of 1010 kg and a radius of 11 m it rotates with an angular
as a bacterium swims through water it propels itself with its flagella so as to overcome the frictional drag forces and
a large rectangular tub is filled to a depth of 260 m with olive oil which has density 915 kgm3 if the tub has the
a guitar string is being restrung with a string having a diameter of 14 mm and a length of 082 m when no tension is
in 1656 the burgmeister mayor of the town of magdeburg germany otto von guericke carried out a dramatic demonstration
a bone has a larger youngs modulus for stretch 16 x 1010 nm2 than for compression 094 x 1010 nm2 by how much is each
suppose the length l of the uniform bar is 300 m and its weight is 230 n also let the blocks weight w 350 n and angle
find the minimum diameter of an l 182 m long aluminum wire that will stretch no more than 770 mm when a mass of 339 kg
at the earths surface a projectile is launched straight up at a speed of 87 kms to what height will it rise ignore air