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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
a wire is formed so as to make a circular loop connecting two long straight sections as shown in the figure below if
a golf ball strikes a hard smooth floor atan angle of theta 264deg and as the drawing shows rebounds at the sameangle
which statement out of these four is trueproblem 1a positive point charge is placed in a region of space where there is