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a tuning fork with frequency 540 hz is dropped from a building of height 125 m with a musician the musician can hear
three 1405-g styrofoam balls of radius 2 cm are coated with carbon black to create them conducting and then are tied to
assume a black hole were to suck up a massive amount of surrounding oxygen and hydrogen would this ignite inside the
in a tornado the pressure can be 15 below normal atmospheric pressure sometimes a tornado can move so rapidly that this
a 100 x 102-g mass of tungsten at 1000degc is placed in 200 x 102nbspg of water at 200degc the mixture reaches
the cooling system of a car engine contains 200 litre of water 1 l of water has a mass of 1 kg1 which is the better
a golf ball with mass 0046 kg rests on a tee it is struck by a golf club with an effective mass of 0220 kg and a speed
meganrsquos mass is 28 kilogram she climbs the 48- m ladder of a slide and reaches a velocity of 32 ms at the bottom of
a 20-kg rock initially at rest loses 407 j of potential energy while falling to the ground1 compute the kinetic energy
a 300-kg gun is resting on a frictionless surface the gun fires a 500-g bullet with a muzzle velocity of 3100 ms1
a 200 x 103-kg car has a speed of 120 ms the car then hits a tree the tree doesnrsquot move and the car comes to rest1
pam wearing a rocket pack stands on frictionless ice she has a mass of 45 kg the rocket supplies a constant force for
visible light passes through a diffraction grating that has 900 slits per centimetre and the interference pattern is
a steel cable utilized in a suspended roof system has an allowable tensile strength 150 ski it should carry a load of
antwan raised a 120-n physics book from a table 75 cm above the floor to a shelf 215 m above the floor what was the
tarzan mass 85 kg swings down on the end of a 20-m vine from a tree limb 40 m above the ground sketch the situation1
in the 1950s an experimental train that had a mass of 250 x 104 kg was powered across a level track by a jet engine
ellen and angela each have a mass of 45 kg and they are moving together with a speed of 100 ms1 what is their combined
sau-lan has a mass of 52 kg she rides the up escalator at ocean park in hong kong this is the worldrsquos longest
a particle moves in an elliptical path given by the equation r bcosomegati 2bsinomegatj discover the angle between
a skier starts from rest at the top of a 45-m hill skis down a 30deg incline into a valley and continues up a 40-m-high
bullets canrsquot penetrate supermanrsquos chest assume that superman with mass 104 kg while not moving is struck by a
a motor having an efficiency of 88 operates a crane having an efficiency of 42 with what constant speed does the crane
sally expends 11 400 j of energy to drag a wooden crate 250 m across a floor with a constant speed the rope makes an
a moverrsquos dolly is used to transport a refrigerator up a ramp into a house the refrigerator has a mass of 115 kg