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a flat sheet of crown glass has a thickness of 23 cm it is on top of a flat sheet of crystalline quartz that has a
a if the incident angle from the air is 30 degrees and the refracted angle within the glass in 20 degrees what is the
a 120cm3 box contains helium at a pressure of 150atm and a temperature of 800c it is placed in thermal contact with a
a 094-microf capacitor is charged by a 450-v power supply the fully charged capacitor is then discharged through a
an object of mass 500 kg and traveling 400 ms to the right collides with a second object of mass 250 kg traveling 100
a particle of mass 447 times 1027 kg moving at 946 times 105 ms strikes an identical particle which is initially at
3 a system with a volume of 100l is initially empty and then it is filled completely with water during the process the
1 one radiator has a volume of 009mtsup3 it contains saturated vapor at a temperature of 100degc the inlet and outlet
the molecular mass of helium is 4 gmol the boltzmanns constant is 138066times1023jk the universal gas constant is
097 l of 16c water is placed in a refrigerator the refrigerators motor must supply an extra 7 w power to chill the
a 783kg bungee jumper is enjoying an afternoon of jumps the jumpers first oscillation has an amplitude of 103m and a
a heat engine operates between a hot resrvoir at 1500k and a cold reservoir at 500k during each cycle 10x105 j of heat
a gas at p40kpa and t 310k hass a mass density of 84410-2kgm3a identify the gasb what is the rms speed of the atoms in
a 140g oscillator has a speed of 905cms when its displacement is 170cm and 550cms when its displacement is 520cmcm
an l-c circuit containing an 735-mh inductor and a 105-nf capacitor oscillates with a maximum current of 0705 aa
the beam emerging from a ruby laser wavelength 6943 nm passes through a circular aperture 24 mm in diametera if the
an inductor is connected to the terminals of a battery that has an emf of 120 v and negligible internal resistance the
a 639kev x-ray photon scatters from an electron at rest deflecting through 105deg what is the scattered photons
a shell is shot with an initial velocity v0 of 44 ms at an angle of 0 60deg with the horizontal at the top of the
a certain man has skin tissue with the following characteristics thickness of skin tissue 388mm surface area 175m2 the
a coil has 395 turns and self-inductance 325 mh the current in the coil varies with time according to i 680 ma
the cheetah can reach a top speed of 114 kmh 71 mih while chasing its prey in a short sprint a cheetah starts from rest
a common problem inside orbiting space stations is monitoring astronauts weight or better said mass the apparent
a student doing an experiment pours 0110kg of heated copper shot into a 0355-kg aluminum calorimeter cup containing
after getting a drink of water a hamster jumps onto an exercise wheel for a run a few seconds later the hamster is