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if you drop an object from a height of 13 m it will hit the ground in 052 s if you throw a baseball horizontally with
a 540-kg woman stands at the western rim of a horizontal turntable having a moment of inertia of 520 kg middot m2 and a
a small aircraft is headed due south with a speed of 578 ms with respect to still air then for 900 x 102 seconds a wind
a counterweight of mass m 380 kg is attached to a light cord that is wound around a pulley as shown in the figure
in the railroad freight yard an empty freight car of massmrolls along a straight level track at10ms and collides with
a64-kg astronaut is in space far from any objects that would exert a significant gravitational force on him he would
an object of mass 33 kg is projected into the air at a 55deg angle it hits the ground 34 s later what is its change in
light from a sodium lamp with a wavelength in a vacuum of 590 nm enters diamond in which the speed of light is 124 108
the index of refraction for red light in material x is measured at 170 it is determined that blue light travels 300 106
a converging lens of focal length 39 cm is placed next to a converging lens of length 55 cm what is the effective focal
you have an organ pipe that resonates at frequencies of 800 1120 and 1440 hz but nothing between these it may resonate
a mass on a spring bobs up and down over a distance of 25 cm from the top to the bottom of its path twice each second
the power output of a cyclist moving at a constant speed of 48 ms on a level road is 140 wa what is the force exerted
you shoot a 47-g pebble straight up with a catapult whose spring constant is 310 nm the catapult is initially stretched
the length of a spring increases by69cm from its relaxed length when a mass of17kg is hanging in equilibrium from the
sam pushes a 100-kg sack of bread flour on a frictionless horizontal surface with a constant horizontal force of30n
a spacecraft in the shape of a long cylinder has a length of 100 m and its mass with occupants is 1810 kg it has
a solid uniform sphere and a uniform spherical shell both having the same mass and radius roll without slipping down a
on a frictionless horizontal air table puck a with mass 0250 is moving toward puck b with mass 0350 which is
a typical ten-pound car wheel has a moment of inertia of about 035 kgm2 the wheel rotates about the axle at a constant
a solid uniform ball rolls without slipping up a hill as shown in the figure at the top of the hill it is moving
when the power is turned off on a turntable spinning at 780 rpm you find that it takes 105 revolutions for it to stop
a constant retarding torque of 15 mmiddotn stops a rolling wheel of diameter 050 m in a distance of 21 m how much work
a uniform 10 kg cylinder of radius 010 m is suspended by two strings wrapped around it as the cylinder descends the
a rope goes over a circular pulley with a radius of 75 cm if the pulley makes four revolutions without the rope