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a uniform ion beam of radius r consists if n ions per meter ofmass m speed v and charge q find the lorentz force due
two point charges are placed along a horizontal axis with the following values and positions 30muc at x0 cm and-70muc
the coefficient of static friction is 8 between the soles ofa sprinters shoes and the level track surface shes running
a transformer has 3840 turns in the secondary the inputvoltage is 110v the output current is 65a the input current
a 560 kg mass is pushed against a spring k 2000 nm such thatthe spring is compressed 120 cm the mass is
at a party a stereo system comprises of two identical balancedspeakers located right next to each other and they are
when skylab reentered the earths atmosphere on july 11 1979it broke into a myraid of pieces one of the largestfragments
an sub with a mass of 1800 kg is traveling eastbound at 17 mswhile a compact car with mass of 900 kg is traveling
a person on a trampoline bounces straight upward with aninitial speed of 45 ms what is the persons speed when she
a 22 kg dog is standing on the edge of a stationary frictionless turntable of rotational inertia 95 kgmiddotm2
a satellite of mass 4500 kg orbits the earthmass 60 1024 kg and has a period of 5800 sa find the magnitude of the
a ball is thrown upward with an initial velocity of 96 ftsecfrom the top of a 100 ft buildinga what equation models the
a gun is fired with angle of elevation 30 degrees the max height of the shell is 300 meters what was the muzzle speed
a recently developed method to study brain function is to produce arapidly changing magnetic field within the brain
a bit of computer memory is some physical object that can be in two different states often interpreted as 0 and 1 a
a child pulls a friend in a little red wagon with constantspeed the child pulls with a force of 16n for 100m and
the magnitudes of the four displacement vectors shown in thedrawing are a 150 m b 100 m c 140 m and d 250 m
1 a 15 kg cannon ball is firedfrom a cannon with muzzle speed of 867 ms at an angle of513 withthe horizontal the
a what is the ratio of the intensity of an earthquake wave as itpasses a point 20 km from the source tothe intensity as
a centrifuge in a medical laboratoryrotates at an angular speed of 3400revmin when switched off it rotates through 520
a 110kg linebacker tackles an 85kg halfback immediately before the collision the linebacker is slipping with a velocity
an lcr circuit contains a resistor with r 4200 omega a capacitor withc 6000 microf and aninductor with l 20 mh
a 13 g bullet traveling 230 ms penetrates a 20 kg block of wood and emerges going 170 ms if the block is stationary on
a rocket-powered hockey puck has a thrust of 100 n and a total mass of 210 kg it is released from rest on a
some clocks that are powered by an ac voltage use the ac frequencyto keep time the power company makes this possible by