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a moon rock is found to contain 500 g of 232th and 100 g of 208pb assuming that all of the lead has resulted from the
if wind blows at 25 ms over a house what is the net force on the roof if its area is 214 m2 and is
a spherical balloon has a radius of 120 m and is filled with helium how large a cargo can it lift assuming that the
in a movie tarzan evades his captors by hiding underwater for many minutes while breathing through a long thin reed
a bottle has a mass of 3500 g when empty and 9840 g when filled with water when filled with another fluid the mass is
after landing a jetliner on a straight runway taxis to a stop at an average velocity of -300 kmh if the plane takes
two conducting spheres one of radius 0010 m and the other of radius 0170 m each have a charge 300e-08 c and are very
a quarter having a radius of 1 cm and a thickness of 13 mm is placed in a uniform e field of 6300 nc so that the face
a 155--tall fisherman stands at the edge of a lake being watched by a suspicious trout who is 350 from the fisherman in
a typical aaa battery has stored energy of about 3400 j battery capacity is typically listed as 625 ma h meaning that
a mass m48kg hangs on the end of a massless rope l192m long the pendulum is held horizontal and released from rest how
a train on a straight level track has an initial speed of 370 kmh a uniform acceleration of 110 ms2 is applied while
the wheelbase on a truck is 24 m wide and the trucks center of mass is located along the vertical centerline of the
an air-filled cylindrical inductor has 2500 turns and it is 38 in diameter and 326 long what is its inductance how many
a cockroach of mass m lies on the rim of a uniform disk of mass 4m that can rotate freely about its center like a
estimate the minimum accelerating voltage required for an x-ray tube with a fe26 anode to produce a ka
a electric wire with 385a current is placed in a magnetic field of strength 97t the 54m long wire makes an angle of 42o
the vibrational spectrum of the h2 molecule has lines separated in frequency by 13x1014 hz calculate the spring
1 a proton charge 16x10-19 travels through a magnetic field of 178t with a velocity of 23x105 msec what is the
a billiard ball moving at 75cms hits an identical ball initially at rest and glances off at 75degrees to the original
prior to being placed in its hole a uniform utility pole of weight 5630 n and length 91 m makes some nonzero angle with
a 603-g bullet is moving horizontally with a velocity of 342 ms where the sign indicates that it is moving to the
a magnetic field is oriented at an angle 60 degrees to the normal of a rectangular area if the magnetic field has a
the pilot mass m of an aerobatic glider an airplane with no engine flies her aircraft in a loop a vertical circle of
a trap door of length and width 235 m is held open at an angle of 650deg with respect to the floor a rope is attached