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a 115kg mail bag hangs by a vertical rope 35m long a postal worker then displaces the bag to a position 22m sideways
you would like to shoot an orange out of a tree with your bow and arrow the orange is hanging 500 m above the ground
a photon with energy 050 ev is barely capable of causing a photoelectric effect when it strikes a metal plate suppose
in the rutherford scattering experiment 330 mev alpha particles 4he nuclei containing 2 protons and 2 neutrons scatter
on a frictionless horizontal air track a glider oscillates at the end of an ideal spring of force constant 400 the
a 0366-kg block is attached to a horizontal spring that is at its equilibrium length and whose force constant is 203 nm
a 150-g marble is dropped from rest onto the floor 138 m belowa if the marble bounces straight upward to a height of
a 050-kg croquet ball is initially at rest on the grass when the ball is struck by a mallet the average force exerted
a point charge q 169 microc moving in a uniform magnetic field of b 122 t has a velocity of v 593times105 ms that is
a power plant produces 10648 mwt if 7715 mwt is rejected to the environment what is the thermal efficiency of the
what is the particular advantage to know the penetration depth of x-rays impinging upon the sample when performing xps
how is quantitation achieved in xps and how does it depend upon analyte
what is meant by the chemical shift in xps how does it arise and how can it be sometimes be
a neighborhood transformer on the top of a utility pole transforms 140 kv 600 hz alternating voltage down to 1200 v to
maldi is a competitive method to esi how does the ionization process work and what are two distinct advantages and
a a stone is dropped from the top of a 820 m tall building how far above the ground is the stone 180 seconds before it
in esi it is very important to regulate the ph of the solution therefore the solution is usually buffered or has added
a car is travelling in a straight line at a speed of 910 kmhr if the brakes can apply a maximum decelleration of 500
gasohol is a mixture of ethanol and gasoline used to increase the oxygen content of fuels and thus reduce pollutants
1what process is defined as the net movement of water molecules from a low concentration of solute to a high
determine the angle of deviation between two rays emerging from the wollaston prism constructed of calcite and with the
a synthesis gas at 500degc that analyzes 64 co2 02o2 40 co 508 h2 and the balance nitrogen is burnt with 40 dry excess
a fabri-perot interferometer is to be used to resolve the mode structure of a he-ne laser operating at 6328 nm the
about 30 of crude oil is processed eventually into automobile gasoline as petroleum prices rise and resources dwindle
a single layer of dielectric lens coating is to be deposited on a lens made of a material with refractive index of 178