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the starship enterprise speeds by you at a speed of 0960c it is measure in your frame to be 100 m longa what will be
consider a fusion reaction in which two deuterium nuclei fuse to form a tritium nucleus and a protonhow much energy is
suppose a muon produced as a result of cosmic ray colliding with a nucleus in the upper atmosphere has a velocity v
a magnet of length l is dropped so the front end is at height h from the coil and you get a graph with two peaks each
capacitors wont hold a charge indefinitely as time goes on charge gradually migrates from the positive to the negative
a magnetic field points perpendicular into a 5x12 cm rectangular coil of 44 turns and resistance 25 omega wa a certain
a student uses an audio oscillator of adjustable frequency to measure the depth of a water well he reports hearing two
suppose the tension in a cord is 120 n if the speed of a wave in the cord is 950 ms then what must be the linear mass
a loop of wire with radius r has charge density 3theta2 where theta is in radians write an integral but do not solve
a proton is projected in the positive x direction into a region of uniform electric field earrowbold -540 multiplied
a beetle 480mm is examined with magnifier of focal length 103 cm if the observers eye is relaxed while using the
big yellow fishing swimming at 20ms swallows little green fish at rest big yellow fish is 3 times as massive as little
a 70kg block is pushed 5m up an incline against a friction force of 50n the block is pushed to a height 1m above the
a solid sphere of mass 25 kg and a radius 15m starts from rest at the top of the ramp inclined 15 degrees and rolls to
a narrow beam containing red 660 nm and blue 470 nm wavelengths travels from air through a 260 cm thick flat piece of
a bicycle is turned upsdie down and has one wheel spinning at 950 rpm the wheel slows uniformly to a stop in 450
a certain atom has atomic number z 20 and atomic mass number a 42a what is the approximate radius of the nucleus of
a merry-go-round starts from rest and reaches the angular speed of 4 rpm in the first two minutes what would be the
a 400-microf capacitor that is initially uncharged is connected in series with a 790-k ohm resistor and an emf source
a 225-mw laser beam of diameter 198 mm is reflected at normal incidence by a perfectly reflecting mirror calculate the
suppose a spacecraft of mass 28000kg is accelerated to 025ca how much kinetic energy would it haveb if you used the
you have a concave spherical mirror with a 133-cm radius of curvature you place an object on the mirrors axis 197 cm in
a future geosynchronous space station will be used to collect solar energy the energy is transmitted back to earth as
an object 140 cm high is held 300 cm from a persons cornea and its reflected image is measured to be 0167 cm highwhat
a potters wheel a solid uniform disk of mass 60kg and radius 25cm spins about its central axis with an angular speed of