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a block with mass m 7 kg is projected up a rough incline angled at theta 34 degrees to the ground with a speed of v
a tortoise can run with a speed of 012ms and a hare can run 20 times as fast in a race they bothstart at the same time
the lower block in is pulled on by a rope with a tension force of f 31 nthe coefficient of kinetic friction between
a charge of 245uc is located at 440m 622m and a charge of-112uc is located at -450m 675m what charge must be locatedat
by differentiation of the 2s radial wavefunction show that it has two extrema in its amplitude and locate
a particle is projected on a frictionless surface in their direction at a speed of v 10 ms it bounces off of a moving
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