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a person lifts a 30 kg cement block a vertical distance of 124 m and then carries the block horizontally a distance of
a child and sled with a combined mass of 506 kg slide down a frictionless hill that is 872 m high if the sled starts
while exploring a sunken boat the principal researcher found the absolute pressure on the exploring devide at the level
how many 325 mg aspirin tablets are needed for a 120 lb patient if the recommended dose is 650 mg of aspirin per kg of
a pharmaceutical company needs to prepare a batch of 5000 bottles containing 80 tablets each with 325 mg of aspirin per
mounted on a low mass rod of length 044 m are four balls two balls each of mass 089kg are mounted at opposite ends of
the compton generator is a beautiful demonstration of the coriolis force due to the earths rotation a narrow glass tube
the boiling point elevation of a solution consisting of a nonvolatile solute in 907 g of benzene is 6348 degrees
you send a beam of light from a material with index of refraction 119 into an unkown material in order to help identify
50ml hcl reacted with 50ml naoh and the change in temperature was 67oc will the temperature change increase or decrease
two long straight parallel wires are separated by a distance of 207 cm each wire carries a current of 133 a in the same
does doubling the volume not concentration of acid and base double the amount of heat produced in a neutralization
a real upright object 8 cm high is placed 12 cm to the left of a converging lens offocal length 8 cm a second
a sample of gasoline was run through the gc yielding several peaks indicating the components that made up the gasoline
a yo-yo is made of two solid cylindrical disks each of mass 0051 and diameter 0080 joined by a concentric thin solid
a vinyl record plays at 333 rpm assume it takes 9 s for it to reach this full speed starting from resta what is its
one solenoid is centered inside another the outer one has a length of 460 cm and contains 6700 coils while the coaxial
the rate constant k for a reaction was measured as a function of temperature a plot of ln k versus 1t in k is linear
a 4 kilogram block of ice is removed from a freezer where its temperature was maintained at 20 degrees celsius how
the turbine and associated rotating parts of a jet engine have a total moment of inertia of 29 kg m2 the turbine is
determine the moment of inertia for three children weighing 610 lb 470 lb and 81 lb sitting at different points on the
a spaceship with a proper length of 105 m passes an observer at a speed of 074355c what is the length of the ship as
in 2000 nasa placed a satellite in orbit around an asteroid consider a spherical asteroid with a mass of 800times1015
a 10 object is released from rest 500km above the earthpart a what is its impact speed as it hits the ground ignore air
an ambulance traveling at 47 ms approaches a car heading in the same direction at a speed of 31 ms the ambulance driver