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the yellow light of sodium with wavelengths of 58899 nanometer and 58959 nanometer is normally incident on a grating
a hot air balloon is accelerating upward under the influence of two forces its buoyant force and the weight for
water flows straight down from an open faucet the cross-sectional area of the faucet is 160 10-4 m2 and the speed of
you have to do 2100joule of work to push a 90 kilogram crate 25 meter up along a slope inclined at 20o find the
an image of the moon is focused onto a screen using a converging lens of focal length f 343 centimeter the diameter of
a 215-gram sample of a metal is heated to 330oc and then is plunged into a 105-gram aluminum calorimeter cup containing
let 255 joule of heat be added to a particular ideal gas as a result its volume changes from 540 to 1188 cm3 while the
a 52 meter wire with mass of 87 gram is attached to the mast of a sail boat if the wire is given a thunk at one end it
red light of wavelength 6659 nanometer produces photoelectrons from a certain material green light of wavelength 5230
romeo 740 kilogram entertains juliet 580 kilogram by playing his guitar from the rear of their boat at rest in still
when a converging lens is utilized in a camera as in the first drawing the film should be placed at a distance of 0250
assume that our sun has a binary companion of much smaller mass say 10 times smaller orbiting at the distance of mars
a proton is traveling at a velocity of 105 ms at 45 degree up from east among x and y axesnbsp at this time fg is the
an rc circuit is made of a 22 kohm resistor and a 0001 mf capacitor the circuit is connected to a 10 v source of emf
a 25-kg block is hanging stationary from the end of a vertical spring that is attached to the ceiling the elastic
the temperature of your skin is approximately 36oc find the wavelength at which the peak occurs in the radiation
a roller coaster car goes over a hill at a constant speed of120ms a what radius should the hill have in order for the
calculate what is the speed of a particle whose kinetic energy is equivalent to one-half its own rest
after landing on an unfamiliar planet a space explorer constructs a simple pendulum of length 530 centimeter the
a 1 kg cart rolling with negligible friction at 6 ms collides with and sticks to an identical cart thats initially a
a glass window 035 centimeter thick measures 75 centimeter by 36 centimeter obtain how much heat flows through this
an archeological specimen containing 102 gram of carbon has an activity of 08 bq evaluate how old is the specimenin
a rectangular air mattress is 20 meter long 050 meter wide and 008 meter thick if it has a mass of 20 kilogram obtain
a fire hose discharges water at a rate of 205 kgs with a speed of 299 ms find what magnitude of force is needed to keep