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lets us a simple model of a wii fit balance board with two forcemeters one at the left edge and one at the right edge
a charged particle moves through a velocity selector at a constantspeed in a straight line the electric field of the
a student claims that if lightning strikes a metal flagpole the force exerted by the earths magnetic field on the
on a brisk walk a person burns about 380 calh at this ratehow many hours of brisk walking would it takes to lose a
in an is ometric exercise a person places a hand on a scale and pushes vertically downward keeping the forearm
compute the linear momentum and angular momentum of a frisbee of mass 0159 kg if it has a linear speed of185 ms and an
in an experiment designed to measure the speed of light a laser is aimed at a mirror that is 540 km due north a
a helicopter starting at rest accelerates straight upfrom the roof of a hospital the lifting forces does work inraising
a 640-mh inductor and a 840-muf capacitor are connected inseries with a generator whose frequency is 308 hz the rms
a regulated 0-50v power supply with 09ohm internal resistance is used to deliver electric power to a 01ohm heating
if a wave is 3 m high has a wavelength of 100 m and aperiod of 8 s estimate the power available from each meter of
the plates of a spherical capacitor have radii 340 mm and 500 mma calculate the capacitanceb what must be the plate
a parallel-plate capacitor has plates with an area of 379cm2 and an air-filled gap between the plates that is265mm
a bullet of mass m30 g or 03 kg is fired into a wooden block of mass m50 kg the block is attached to a string of length
neptune orbits the sun with an orbital radius of 4495x1012m whichallow gases such as methane to condense and form an
in a circus performance a large 50-kg hoop of radius 30 m rolls without slipping if the hoop is given an angular speed
an airplane at a velocity of 650 mileshour in a region where theearths magnetic field is 5x10-5 tesla and is nearly
1 a lead ball is dropped into a lake from a diving board 50 mabove the water after entering the water it sinks to the
a toy train rolls around a horizontal 18-rm m-diameter track the coefficient of rolling friction is 014a what is the
a 494-g bullet is shot through a 099-kg wood block suspended on a string 200 m long the center of mass of the
a dedicated sports car enthusiast polishes the inside and outsidesurfaces of a hubcap that is a section of a sphere
a 74 kg window cleaner uses a 10 kg ladder that is 53 mlong he places one end on the ground 20m from a wall rests the
a chair is pulled away as a person is moving downward to sit on it causing the victim to land hard on the floor suppose
a concave mirror has a radius of curvature of 24 cma determine the object position for which the resulting imageis
a ballistic pendulum is a device used to measure the speed of abullet a bullet of mass m is fired at a block of wood