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four 12 kg masses are located at thec orners of a square 080 m on eachside find the magnitude and direction of the
calculate the final velocity of the electron beam in a crt as itimpinges upon the screen if the voltage between the
the ammonia molecule nh3 has a permanent electric dipole moment equal to 147 d where 1 d 1 debye unit 334 x 10-30 c-m
a satellite is in an elliptical orbit at altitudes ranging from 250to 890 km at the high point its moving at 723 kms
a shell is shot with an initial velocityv0 of 15 ms at an angle of theta0 60degwith the horizontal at the top of the
a thin sheet of transparent material in air with refractive index154 is illuminated by monochromatic light of
if global warming occurs over the next century it is likely that the polar ice caps of the earth will melt and the
sources a and b emit long-range radio waves of wavelength 540 mwith the phase of the emission from a ahead of that from
a rectangular billboard in space has the dimensions 10 meters by20 meters how fast and in what direction with respect
the handle of a 22-kg lawnmower makes a 35 degree angle with the horizontal if the coefficient of friction between the
the ammonia molecule nh3 has a permanent electric dipolemoment equal to 131 d where 1 d 1debye unit 334 multiplied
an 810-kg race car can drive aroundan unbanked turn at a maximum speed of 61 ms without slipping the turn has a radius
a parallel-plate capacitor has plates with anarea of 427 cm2 and anair-filled gap between the plates that is 237 mm
a charge of -2300 microc is located at 3055 m 4501 m and acharge of 1800 microc is located at -2102 m 0a find the
a 850-muf capacitor is connected to a generator operating at alow frequency the rms voltage of the generator is 410 v
a block of mass m50 kg is pulled along a rough horizontal surface by a rope the tension in the rope is 40 n and the
when an object is placed 60 cm from a converging lens it forms areal image when the object is moved to 40 cm from the
an optical fiber is 10 meter long and has a diameter of 20 mm itsends are perpendicular to its axis its index of
an electron traveling at 370 ms enters a21 t magnetic field the angle betweenthe velocity and the field is 133o find
apply two forces to a ring by hanging a mass of 100g at 30 degrees and a mass of 200g at 150 degrees find the third
a cylindrical habitat in space 581 km in diameter and 377 km longhas been proposed by gk orsquoneill 1974 such a habit
solar cell a solar cell generates a potential difference of 010 v when a 600 resistor isconnected across it and a
very dangerous voltages can be found inside a tv set some adviserepairmen to work with one hand in a pocket why is a
two infinitely long coaxial cylindrical surfaces having cylindrical radii a and b respectively where a lt b carry
an alpha particle the nucleus of helium nucleus with charge2e and mass 40u 1u 166 x 10-27 moves in acircular orbit of