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a what isthe total random kinetic energy of all the molecules in one mole of helium at a temperature of360 kb with what
a skateboarder shoots off a ramp with a velocity of 66 msdirected at an angle of 58deg above the horizontal the end
a gratign spectrometer while in a vaccum on earth sends 500nm light off at angle 200 degrees in first order spectrum on
a block a block in the shape of a rectangularsolid has a cross-sectional area of 400cm2 across its width a
a three-way lightbulb can produce 50w 100w or 150w at120v such a bulb contains two filaments that can beconnected to
swimmer stroiking along at 22 ms ceases all body movement uniformly comes to a dead stop after 10m how far swimmer
near earth near earth the density of protons inthe solar wind a stream of particles from the sun is 860 cm-3 and their
the graphite in a pencil has a resistivity of784times10minus6 wtimesmthe graphites diameter is 0700 mm and its length
the drawing shows three objects they are connected bystrings that pass over massless and friciton-free pulleys
a toy train rolls around a horizontal 15-m-diameter trackthe coefficient of rolling friction is 015what is the
the circuit in the drawing contains two resistors and two capacitors that are connected to a battery via a switch when
a penny of mass 31 g rests on a small 13 g block supported bya spinning disk of radius 11 cm the coefficients of
an empty capacitor is connected to a battery and charged upthe capacitor is them disconnected from the battery and a
in the drawing the weight of the block on the table is450 n and that of the hanging block is160 n ignore all frictional
two tugboats pull a disabledsupertanker each tug exerts a constant force of 155 x 106 none 20deg west of north and
a 040 kgball attached to the end of a horizontal cord is rotated in acircle of radius 15 m on a frictionless horizontal
a 450 kg girl is standing on a 152 kg plank the plank originally at rest isfree to slide on a frozen lake which is a
two air carts of mass m184 kg and m242 kgare placed on a frictionless track cart 1 is at restinitally and has a spring
if a satellite is placed in orbit about the earth at adistance 27 times the earths radius what will its velocity be how
water is flowing in a circular pipe with varyingcross-sectional area and at all points the water completely fillsthe
a 95-kg fullback running at 82 ms collides in midairwith a 128-kg defensive tackle moving in the opposite directionboth
a stone is dropped from rest into a well the sound of thesplash is heard exactly 220 s later find the depth of the well
a 22 mlong glass tube that is closed at one end is weighted and loweredto the bottom of a freshwater lake when the tube
two parallel inducting wires each carry a current of 50a theforce per unit length between these wires is equal to the
a traveling wave in a string of linear 001kg per meter isdescribed by the wave function y002m sin50radm x -