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a thin spherical shell of mass 400kg and diameter of 0200m is filled with heliumdensity p 0180 kgms it is then released
a golfer hits a golf ball with a velocity of 138 mph determine the head velocity of the golf club assume the
let us understand why the moon has no atmospherewe need to remember some mechanics here1 taking the temperature of the
rocket-powered sleds are used to test the human response to acceleration if a rocket-powered sled is accelerated to a
it was once recorded that a jaguar left skid marks that were 290 m in length assuming that the jaguar skidded to a stop
in the before part of the figure below car a mass 1000 kg is stopped at a traffic light when it is rear-ended by car b
a bullet is moving at a speed of 367 ms when it embeds into a lump of moist clay the bullet penetrates for a distance
an engineer is designing the runway for an airport of the planes that will use the airport the lowest acceleration rate
with what speed in mileshr 1 ms 223 mihr must an object be thrown to reach a height of 915 m equivalent to one
rubidium atoms have been cooled using laser techniques and trapped in a magnetic bottle in order to observe bose
what initial launch speed is required to allow a projectile to have a range of 300 m if it is launched at an angle of a
light that enters your eyes is focused to form an image on your retina the optics of your visual system have a total
the wheel in the figure below has eight equally spaced spokes and a radius of 30 cm it is mounted on a fixed axle and
a disk of radius 02m and moment of inertia 15 kgm2 is mounted on a nearly frictionless axle a string is wrapped
a wave pulse travels down a slinky the mass of the slinky is m 088 kg and is initially stretched to a length l 73 m
a transverse harmonic wave travels on a rope according to the following expression yxt 013sin26x 174t the mass
a ywheel in the form of a heavy circular disk of diame- ter 0600 m and mass 200 kg is mounted on a friction- less
the 200-inch-diameter objective mirror of the reflecting telescope at the mt palomar observatory has a focal length of
an air puck of mass m1 023 kg is tied to a string and allowed to revolve in a circle of radius r 13 m on a
a 225 cm screwdriver is used to pry open a can of paint if the axis of rotation is 229 cm from the end of the
consider a simple pendulum with l 24 m and m 18 kg suppose the mass is initially at rest at the lowest point on its
a purple beam is hinged to a wall to hold up a blue sign the beam has a mass of mb 69 kg and the sign has a mass of ms
a gymnast with mass m1 490 kg is on a balance beam that sits on but is not attached to two supports the beam has a
a solid sphere of uniform density starts from rest and rolls without slipping down an inclined plane with angle 300o
a 08 kg mass is moving in a circle of radius 15 m on a flat frictionless table at the end of a string the speed of the