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two girls go fishing in row boat joy whose mass is 65kg jumps straight off the front of the boat with speed of 200ms
as a parallel-plate capacitor with circular plates 19 cm in diameter is being charged the current density of the
a parallel-plate capacitor with circular plates of radiusr is being discharged the displacement current through
why if the potential is constant on a surfacethen any electric field present can only beperpendicular to that surface
the problem states that initially the wire coil is oriented perpendicular to a magnetic field of 063t pointing upnbsp
the capacitance of a capacitor depends ona the energy stored in itb the charge on itc the potential difference across
astronomers discover a binary star system that has a period of870 days the binary star system consists of two
a woman who weighs 482 n is leaning against a smooth vertical wallas the drawing shows find athe magnitudeof the force
a mass spectrometer has an adjustable magnetic field when themagnetic field is 7000e-2 t a singly ionizedhydrogen atom
a 50 kg wooden block is placed on an adjustable wooden inclinedplane hint for wood onwood mus is approximately 58and
a rigid rod of mass m3 is povited at point a and masses m1 and m2 are hanging from it as shown point a l1 m3 l2 m1 m2 a
two planets are orbiting a star in a distant galaxy the first hasa semimajor axis of 150 times 106 km an eccentricity
a solid cube of mass 40kg and edge length 30mrests on a horizontal floor a person then pushes on the upper edgeof the
a transformer with 2 coils wrapped around an iron core is connected to a generator and a resistor there are 13 turns
a dentist uses a mirror to examine a tooth that is 075 cm in front of the mirror the image of the toothis formed 90 cm
you are designing a lathe motor part of which consists of a uniform cylinder whose mass is 90 kg and whose radius is
the figure shows a circuit of four resistors that are connected toa larger circuit the graph below the circuit shows
a physics student is standing on an initially motionlessfrictionless turntable with rotational inertia 031kgmiddotm2
a proton is released such that it has an initial speed of 40105 ms from left to right across thepage ie it is moving in
a mountain climber friend with a mass of 80 kg pondersthe idea of attaching a helium balloon to himself to
two narrow slits are spaced 25 mm apart and are 60 cm from ascreen what is the distance between the second and third
a merry-go-round starts from rest and accelerates uniformly over110 s to a final angular velocity of840 revmina find
a helicopter propeller blade starts from rest and experiences aconstant angular acceleration of 180rads2 find the speed
suppose the ray in air with n 100 enters a slab with n 234 at a 309degangle with respect to the normal then exits the
a 20-kg ball attached to a string whose length is 15m movescounterclockwise as viewed from above in a horizontalcircle