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a cord is used to vertically lower an initially stationary block of mass m 14 kg at a constant downward acceleration
a curve in a road forms part of a horizontal circle as a car goes around it at constant speed of 14ms the horizontal
a solution contains 625g calcium nitrate cano322 in 4300g of water express the concentration of calcium nitrate as mole
a block of 44 kg is held at the top of a smooth incline the incline has height of 21 m and is at an angle of 19 degrees
what is the density in grams per liter of a gas mixture that contains 250 f2 and 750 he by volume at 768 mm hg and 250
a square loop length along one side 20 cm rotates in a constant magnetic field which has a magnitude of 20 t at an
a water solution of sodium hypochlorite naclo has a concentration of 061m express this concentration as a mole
a rock is suspended by a light string when the rock is in air the tension in the string is 391 n when the rock is
a 230kg hoop 220m in diameter is rolling to the right without slipping on a horizontal floor at a steady 300rads part a
the hydrogen ion concentration in a solution with ph 10 is then the hydronium ion concentration in a solution with ph
a solid aluminum in got weighs 92 n in aira what is its volumeb the ingot is suspended from a rope and totally immersed
you are designing a diving bell to withstand the pressure of seawater at a depth of 220 ma what is the gauge pressure
a spring with a constant of 32 nm is placed on a horizontal smooth surface and a mass of 23 kg is pushed against it as
speculate on the structure of the compound formed when 4-dimethyl-aminobenzaldehyde is condensed with
black smokers are hot volcanic vents that emit smoke deep in the ocean floor many of them teem with exotic creatures
the flywheel of a gasoline engine is required to give up 530j of kinetic energy while its angular velocity decreases
a grinding wheel in the shape of a solid disk is 0200m in diameter and has a mass of 250kg the wheel is rotating at
estimate the inductance of a solenoid made by buying a typical spool of wire from hardware store and winding it
a typical ten-pound car wheel has a moment of inertia of about 35kgm2 the wheel rotates about the axle at a constant
in a crash test a car of mass 1864 kg collides head on with a wall with speed 1296 ms in the -ve x direction the
a 18199 kg car that stopped at a traffic light is struck from the rear by a 41972 kg car the two cars become entangled
a constant force of 20 n is applied to an object of mass 75 kg at an angle of 22 degrees above the horizontal causing a
a 5-kg cart moving to the right along positive x axis with a speed of 6 ms collides with a concrete wall and rebounds
water flows through a fire hose of diameter 549 cm at a rate of 12 x10-2 m3s the fire hose ends in a nozzle of inner
a device to measure the density of a liquid is made of solid plastic with uniform density and has the shape of a sphere