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a block whose mass m is 680 kg is fastened to a spring whose spring constant k is 65 nm the block is pulled a
a 165-m-long cable consists of asolid-inner cylindrical nickel core 20cm in diameter surrounded by a solid-outer
an 800-n billboard worker stands on a 40-mscaffold supported by vertical ropes at each end if thescaffold weighs 500 n
1 an astronaut in training is placed in a merry-go-round-likedevice that rotates her at high speed in a horizontal
a 73 kg window cleaner uses a 17 kg ladder that is 51 m long heplaces one end on the ground 30 m from a wall rests the
a 400 kg object isswinging in circular path and in a vertical plane on a 500 mlength string if the angular speed is the
a scaffold of mass 43 kg and length 60 m is supported in ahorizontal position by a vertical cable at each end a
a billiard ball is moving in the x-direction at 30 cms and strikes another billiard ball moving in the y-direction at
a 30 kg particle with velocity v 50 ms i -60 ms j is at x 30 m y 80 m it ispulled by a 70 n force in the negative x
a high-voltage power line carries a current of 110 a at a locationwhere the earths magnetic field has a magnitude of
oxygen for hospital patients is kept in special tanks where the oxygen has a pressure of 650 atmospheres and a
a 500 g object is attached to ahorizontal spring with a force constant of 50 nm and released from rest with an
a microscope has an objective lens with a focal length of 1622 mmand an eyepiece with a focal length of 920 mm with the
the chamber of a rock-tumbling machine is a hollow cylinder withmass 62 g and radius 71 cm the chamberis closed off by
two unfortunate climbers roped together are sliding freely down an icy mountainsidenbsp the upp climbermass 73 kg is on
a a bicycle rider races with a constant speed around acircular track25m in diameter what is the acceleration of the
an 896-kg jogger is heading due east at a speed of 297 ms a631-kg jogger is heading 182 deg north of east at a speed
what happens to rechargable batteries in the process of rechargingwhat are some experiments you can do to test how
an asteroid is moving along a straight line a force acts along the displacement of the asteroid and slows it down the
a person pulls a toboggan for a distance of 327 m along the snowwith a rope directed 249 deg above the snow the tension
how much heat must be added to 1 mole of a monatomic gas if the temperature goes to -100 degrees c to 300 degrees c at
a 1562 kg object oscillates with simple harmonic motion on a string with a force constant of k15000 nm if the maximum
a simple pendulum is a mass at the end of a light string if thelength of the string is 14 m and the mass is released
the angular momentum of a flywheel having a rotational inertiaof 0200 kgmiddotm2 about itscentral axis decreases from
an object of mass 550 kg is lifted from the floor to a height of350m at a constant speed1 how much work is done by the