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an irregulary shaped metal object has a mss of 2873 g it is lowered int a 100-ml graduated cylinder that contains 352
the amplitude of a periodic wave is described by theequation ao cos4 kx - wta find the fourier spectrum of this
two slits each of width 25nm are 75 nm apartmonochromatic light of wavelength 630nm is incident on these twoslits a
a step-down transformer is used for recharging the batteries ofportable devices the turns ration2n1 for a
electrolysis of molten nacl in a downs cell is the major isolation step in the production of sodium metal suppose 246 g
a car accelerates uniformly from rest for 20 seconds with anacceleration of 15ms2 it then travels at a constantspeed
each of the six real batteries in the figure has an emf of 215 vand a resistance of 410 omega the external resistor
a converging lens with focal length 40 cm is placed 80 cm in front of a convex mirror with focal length -40 cm an
electrolysis of molten mgcl2 is the final production step in the isolation of magnesium from seawater assuming that 308
a 60 cm diameter pipe gradually narrowsto 40 cm when water flows through this pipe at a certain ratethe gauge pressure
when a newtons ring aparatus is submerged in a liquid the diameterof the 8th dark ring decreases from 292 cm to 248 cm
calculate the internal energy amd ethalpy changes that occur when air is changed from an initial state of 40 0f and 10
solid disk of radius 05m and mass 5kg is rotating countercw about central pivot with omega10sec-1 a constant fictional
a flywheel is initially rotating at 20 rads and has a constantangular acceleration after 90 s it has rotated through
a capacitor is not the most efficient device for storing energybatteries can store more energy in much less space for
a charge of 100 microc is at the centerof a cube of edge 650 cm no othercharges are nearbya find the flux through the
a helium atom mass 40 u moving at 600ms to the right collides with an oxygen molecule mass 32 umoving in the same
a mass on a spring bobs up and down over a distance of 27 cm from the top to the bottom of its pathfour times each
a spring hanging from the ceiling has an unstretched length of 80cm a mass is then suspended at rest from the spring
you have 11 m of 19 mm diameter copper wire and a battery capable of passing 12 a through the wirea what magnetic field
what is the distance between adjacent crests of ocean waves that have a frequency of 024 hz if thewaves have a speed of
two buckets of nails are hung one above the other and pulled up to a roof by a ropenbsp each bucket of nails has a mass
if the breakers at a beach are separated by 60 m and hit shore with a frequency of028 hz with what speed are
a horizontal light ray strikes an equilateral prism all3 angles are 60 degrees at the mid point of the prisms leftside
you have a concave spherical mirror with radius of curvatureequal to 50 cm where do you have to place an object so that