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a solenoid contains 780 coils of very thin wire evenly wrapped over a length of 175cm each coil is 250cm in diametera
a steel ball is dropped onto a hard floor from a height of 125 m and rebounds to a height of 116 m assume that the
a 272 kg car is accelerating down an asphalt road what is the force that is driving the car forwardif between asphalt
a stick of mass m is held by supports at each end with each support providing a force of mg2 put one support a distance
a straight 230 wire carries a typical household current of 150 in one direction at a location where the earths magnetic
acceleration on the moon is g6 if an astronaut hit a golf ball with a speed and launch angle that would result in a
the electric motor of a model train accelerates the train from rest to 0740 ms in 340 ms the total mass of the train is
a car of mass m 1365 kg is pushed off a cliff of height h 29 m if the car lands a distance of 14 m from the base of
suppose a flat universe contained a substance with an equation of state of p -15pc2 where p is the mass density and c
four identical charges 21 c each are brought from infinity and fixed to a straight line each charge is 049 m from the
sam pushes a 100-kg sack of bread flour on a frictionless horizontal surface with a constant horizontal force of 40 n
in a tug of war on a slippery floor jose of mass m pulls on the rope and imparts an acceleration a to juanita of mass
hookes law describes a certain light spring of unstretched length 370 cm when one end is attached to the top of a door
a 76 w light bulb with a resistance of 178 is connected to a power supply with a 117 v what is the internal resistance
a daredevil on a motorcycle leaves the end of a ramp with a speed of 305 ms as in the figure below if his speed is 287
the potential energy of a girder after being lifted tothe top of a building is 517 times 105 ft lb if its mass is 173
you are preparing for a 5-day backpacking trip where you plan to use a gasoline cook stove for about 30 min each
the battery for certain cell phone is rated at 370v according to the manufacturer it can produce 315 x 104 j of
a horizontal 2-m-diameter gate is located in the bottom of a water tank 5m depthdetermine the force f required to just
an elevator mass 4600 is to be designed so that the maximum acceleration is 00650 what is the maximum force the motor
a 6-kg bowling ball with a radius of 14 cm is spinning about a vertical axis with its center of mass motionless at an
in a collision between an alpha particle and an electron what general considerations limit the momentum transfer does
a bat crashes into the vertical front of an accelerating subway trainif the frictional coefficient between bat and
a bug crawls outward from the center of a compact disc spinning at 190 revolutions per minute the coefficient of static
two newly discovered planets follow circular orbits around a star in a distant part of the galaxy the orbital speeds of