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1 when the quantity m2 - m1 is increased for an atwood machinea the acceleration decreasesb f is maintained constantc
two point charges are fixed40cmapart from each other their charges areq1q2 60mucand their masses arem1 15mgandm2
a 29-mufcapacitor is fully charged by a 30-vbattery the battery is then disconnected the capacitor is not ideal and the
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a certain spring scale measures the weightnbspof an object hanging from it by measuringnbspthe force exerted on the
a thin rod of length lies along the -axis it has a uniform linear charge distributiona what is the value of the
define what an isotope is describedetail some isotopes of the element you picked what specifically makes them the same
what is the speed of an electron that has been accelerated from rest through a potential difference of 1000
does anyone know any nuclear engineeringdetermine the fission rate density necessary to produce a thermal power density
pure training inc is a company that helps people start their own businesses as part of the training it provides the
chris jumps off a bridge with a bungee cord a heavy stretchable cord tied around his ankle figure 1 he falls for 15 m
a calculate the electrostatic force on a uniformly charged rod of length 2l and charge q which lies along the axis of a
three forces 1 2 and 3 all act on an object as shown in the figurethe magnitudes of the forces are f1 800 n and is
a ball is projected horizontally at 3ms from a table and lands 120 cm away from the base of the table what is the
a car travels due east with a speed of 340 kmh raindrops are falling at a constant speed vertically with respect to the
why can a single object have only kinetic energy while potential energy requires interactions among objects or systems
a projectile is launched at ground level with an initial speed of475 ms at an angle of 250deg above the horizontal it
a 19 kgnbspmetal head of a geology hammer strikes a solid rock with a speed ofnbsp 59 msnbspassuming all the energy is
a box of unknown mass is sliding with an initial speed vi490 ms across a horizontal frictionless warehouse floor when
a105kg object oscillates at the end of a vertical spring that has a spring constant of245104nm the effect of air
consider two parallel wires placed a distance of 195 cm apart the current in the first wire is 750 a and the current in
1 a parallel-plate capacitor is formed from two 29 cm -diameter electrodes spaced 30 mm apart the electric field
the capacitor in an rc circuit r 110omega c 40muf is initially unchargeda find the charge on the capacitor in the
a force of 200 n is needed to push a table across a level classroom floor for a distance of 3 m how much work was done
compare the energy needed to raise a mass 10 m on earth to the energy needed to raise the same mass 10 m on the moon