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calculate the number of electrons in a small electrically neutral silver pin that has a mass of 70 gsilver has 47
a consider three equally spaced and equal-intensity coherentsources of light use the phasor method to obtain the
a camper hangs a 26 kg pack between twotrees using two separate pieces of rope of different lengths it hangs from one
a golf ball is driven from a level fairway at a time of 454 slater the ball is traveling downward with a velocity of
a nuclear power plant operates at 79 of its maximumtheoretical carnot efficiency between temperatures of660degc and
two small spheres spaced 200 cm apart have equal charge how many excess electrons must be present on each spere if the
a laser emits light at power 150 mwand wavelength 633 nm the laser beam is focused narrowed untilits diameter matches
each side of an equilateral triangular plate has a lengthof 1192 m find the distance of the plates center of mass from
a man lifts a box weighing 50n to a height of 50m in25sa how much work did he dob what power did he expendc what is the
two uncharged metal spheres l and m are in contact anegatively charged rod is brought close to l but not touching itas
both of these particles started at the same point and traveled ahalf circle wouldnt the distance between them be equal
a column of soldiers marching at 133paces per minute keep in step with the beat of a drummer at thehead of the column
a mixture of ozone and oxygen contaning 20 by volume of ozonediffused through a porous plug in 172seconds while the
you and your friend are practicing pass plays with a football you throw the ball at 35 degrees above thehorizontal at
the size of your eardrum the tympanum partially determines the upper frequency limit of your audible region usually
a car drives up a ramp inclined at 10 degrees above the horizontalreaching a speed of 40 ms at the end it will jump a
a geologist searching for oil finds that the gravity at acertain location is 4 parts in107 smaller than average assume
figure a below gives the magnitude ex ofthe electric fields that have been set up by a battery along aresistive rod of
water flows through a horizontal pipe and then out into theatmosphere at a speed of v112 ms the diameters of the left
what is the difference example how would you calculatethe magnitude of the electric force of an electron at a distance
a window washer pushes his scrub brush up a vertical window at constant speed by applying a force as shown in the
in a machine shopa hydraulic lift is used to raise heavy equipment forrepairs the system has a small piston with a
when a high-energy proton or pion traveling near the speed of lightcollides with a nucleus it travels an average
a coil of 160 turns and area 020 m2 is placed with its axisparallel to a magnetic field of 040 t the magnetic field
a parallel-plate capacitor with circular plates is beingcharged consider a circular loop centered on teh central axis