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two people start at the similar place and walk around a circular lake in opposite directions one has an angular speed
a mass is attached to a spring on a frictionless horizontal surface the mass is pulled to stretch the spring by 1 m and
a pitcher throws a curveball that reaches the catcher in 053 s the ball curves as it is spinning at an average angular
in an experiment monochromatic light of lambda 400 nm is incident on a a single slit by a width of 1600nm bright and
a skateboarder shoots off a ramp by a velocity of 68 ms directed at an angle of 54deg above the horizontal the end of
an astronaut arrives at a new planet and gets out his simple device to decide the gravitational acceleration there
the vapor pressure of water at 10 degc is 1300 pa a what percentage of atmospheric pressure is this take atmospheric
a small m 300 g plastic ball is suspended by a l 150 cm long string in a uniform electric field because shown in
a solid uniform ball rolls up a hill that is 280 meters high by a starting velocity of 25ms at the top of the hill it
an equilateral triangle 10 m on a side has a 17 kg spheres whose enters are at each corner of the triangle a spherical
a pendulum clock is accurate on earth where the period of its pendulum is 100 s1 discover its period on the moon where
to the unaided eye the planet jupiter has an angular diameter of 50 arc seconds what will its angular size be when
a 150 kg block rests on the icy surface of a frozen pond which you can suppose to be friction less if the location of
a woman pull a sled with a mass 75kg along a horizontal surface by constant velocity the kinetic friction coefficient
1 is the plane of polarization of a polarizing polymer sheet in the similar direction as the molecular chain
the generator in a purely inductive ac circuit has an angular frequency of 120pi rads ifdeltavmax 132 v and l 0130 h
in an rlc series circuit that includes a source of alternating current operating at fixed frequency and voltage the
two loudspeakers are placed 300 m apart as shown in the figure they emit 450 hz sounds in phase a microphone is placed
a flat bi-metallic strip consists of alluminium riveted to a strip of iron when heated the strip will bend which metal
a certain car requires 240x106 j of thermal energy to operate its engine while traveling a distance of 100 km gasoline
a flight attendant pulls her 700 n flights bag a distance of251 m along a level airport floor at a constant speed the
a microscope by a tube length of 200 achieves a total magnification of with a objective and a eyepiece the microscope
a lighthouse sweeps its beam of light around in a circle once every 75 s to an observer in a spaceship moving away from
a glass bottle of soda is sealed by a screw cap the absolute pressure of the carbon dioxide inside the bottle is 160
neutron stars consist only of neutrons and have unbelievably high densities a typical mass and radius for a neutron