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a 730 kilogram man weighs himself at the north pole and at the equator which scale reading is higher and by how
an object under the influence of gravity is thrown straight up in the air and moves upward until it reaches the peak of
a skater spins with an angular speed of 177 rads with her arms outstretched she lowers her arms decreasing her moment
an archer shoots a 100 g arrow straight up in the air the bow was drawn back 50 centimeter by a 150 force calculate how
in a high magnetic field experiment a conducting bar carrying 135 ka passes through a 30 centimeter long region
a proton moving freely in a circular path perpendicular to a constant magnetic field takes 070micros to complete one
a calculate the electrical energy utilized by a household whose monthly electrical bill is 44 computed at the rate of
you push an object of mass m slowly partway up a loop-the-loop track of radius r starting from the bottom where the
blue interference fringes are formed on a screen 21 m away from a double slit illuminated by monochromatic light of
the space shuttle releases a satellite into a circular orbit785 kilometer above the earth find how fast must the
while exploring a cave a spelunker starts at the entrance and moves the following distances 750 meter north 265 meter
the lifetime of a pi meson in its on frame of reference is26 10-8 sec if the meson moves by a speed of 99c a what is
howard the soda jerk at bees diner slides a 60 kilogram root beer from the end of the counter to a thirsty customer a
a yo-yo with a mass of 0334 kilogram is swung in a vertical circle of radius 0990 meter at the top of the circle the
a man walks with constant speed of 2 ms east for 30 s then turns around and walks with constant speed 2 ms for 10 s
two spherical asteroids have the same radius r asteroid one has mass m and asteroid two has mass 2m the two asteroids
a bird is initially flying horizontally east at 211 ms but one second later it has changed direction therefore that it
a 05 kilogram rubber ball is dropped from a height of 30 meter above a hard concrete ground after striking the ground
in the figure below sources a and b emit long-range radio waves of wavelength lambda 430 m by the phase of the emission
a 75 kilogram astronaut is space walking outside the space shuttle and pushes a 400 kilogram satellite away from the
a skier races down an 11o ski slope during a 6 s interval the skier accelerates at 13 ms2 find the horizontal component
a railroad car of mass 240 xnbsp104nbspkilogram moving at 350 ms collides and couples with two coupled railroad cars
a person with a boat wants to cross a river 1 mile wide flowing with a current 8 mihr the boat has a speed in still
the rain-soaked shoes of a person may explode if ground current from nearby lightning vaporizes the water the sudden
a simple electric motor consists of a150 turn coil 30 centimeter in diameter mounted between the poles of a magnet that