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calculate the cross-section for the scattering of a 10mev alpha-particle by a gold nucleus z79 a197 through an angle
a ball is moving at 4ms and has a momentum of 48 kgms what is the balls
a bat can detect very small objects such as an insect whose length is approximately equal to one wavelenth of the sound
the drawing shows an edge-on view of the solar panels on a communications satellite the dashed line specifies the
a during the time you are in flight down tothe floor the earth is lurching up toward you with an accelerationa if your
in gravity-free interstellar space a spaceship fires itsrockets to speed up th rockets are programmed to increase
a bowling ball mass 72 kg radius 013 m and a billiard ball mass 031 kg radius 0028 m may each be treated asuniform
the terminal voltage of a certain battery is measured with the battery disconnected and is found to be 618 v the
a transformer is used to operate a model train the transformerwhich is plugged into a standard electrical outlet
a very light rigid rod with a length of 5m extendsstraight out from one end of a meter stick the meter stick
a child whose weight is 270 n slidesdown a 62 m playground slide that makesan angle of 20deg with the horizontal the
a projectile is fired horizontally with an initial speed of500 ms neglect air resistancea what is the magnitude of the
top professional pitchers can throw fastballs at speeds of100mph given that 1 mph0447ms what is this speed in meters
a 1200-kg car rolling on a horizontal surface has speed v65kmh when it strikes a horizontal coiled spring and is
a 2-kg mass is attached to a spring hanging vertically from the ceiling of an elevator with the elevator moving up at a
suppose that during the launch of a rocket from the surface of the earth an astronaut onboard the rocket stands on a
the net force acting on an object constrained to the x axis is given by fxx x3 - 4x the force is in newtons and xin
a 330 multiplied by 102 gsample of methanol at 280degc ismixed with 330 multiplied by 102 gof water at 600degc assume
a 215 multiplied by102 g metal block at 800degc is placed in 150 multiplied by102 g of water at 100degc the final
a positive charge q1 is located to the left of a negative charge -q2 on a line passing through the two charges there
a rubber ball of mass 245 g is droppedfrom a height of 205 m onto a floor the velocity of the ball is reversed by the
the electric field midway between two equal but opposite point charges is 1430 nc and the distance between the charges
suppose you are performing the down hill run ofthe experiment you did this week what is the energy ratioefei of a
the position of a mass oscillating on a spring is given byx 97 cm cos2pit 271 sa what is the period of this motionsb
a 0400 kg block of wood hangs from the ceiling by a string and a74x10-2 kg wad of putty is thrown straight upward