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a 100 kg crate is pulled up a rough incline with an initialspeed of 15 ms the pulling force is 1000 n parallel to
a piece of solid carbon dioxide with a mass of 540g is placed in a 100-l vessel that already contains air at 715torr
an object 2 cm tall is placed 40 cm to the left of a converging lens of focal length 10 cm what is the location and
a 040 kg ball attached to the end of a horizontal cord isrotated in a circle of radius 16 m on africtionless horizontal
the ionization energy for potassium is 419 rm kjmol the electron affinity for bromine is -325 rm kjmol use these values
a child on a merry-go-round is moving with a speed of 140 ms when 110 m from thecenter of the merry-go-rounda calculate
a 2500ml sample of 01966 m v2 solution requires 4897 ml of 3000 m ce4 for titration the ce4 is converted to ce3 in the
a 250 g 400-cm-diameter turntable rotates onfrictionless bearings at 610 rpm a 170 g block sits at the center of the
use the standard enthaplies of formation to calculate the standard change in enthaply for the melting of ice -2918
if the average kinetic energy per molecule of a monatomic gasis 7010-21j what is the celsius temperature of the
why does it not matter if the erlenmeyer flasks are wet when the acid solutions are transferred into
a man pushes an 80n crate a distance of 5m upward along africtionless slope that makes an angle 30o withthe horizontal
a spacecraft approaching the earth launches an exploration vehicleafter the launch an observer on earth sees the
a race carm800kg starting from rest completes a 450m dragrace in a time of 3s the cars final speed is 90msneglecting
a potential difference of 90v is found to produce a current 50 a in a 750 m lenght of wire a uniform diameter of 285 m
an unstable nucleus with a mass of 18 x 10-27 kginitially at rest disintegrates into three particles one ofthe
a 450 kg bead slides on astraight frictionless wire with a velocity of 350 cms to the right the bead collides
a 322 g oscillator has a speed of 1130 cms when its displacement is300 cm and 760 cms when its displacement is690
a horizontal aluminum rod 50 cm indiameter projects 60 cm from a wall a1500 kg object is suspended from the endof the
an 954-ml sample of wet o2 is collected over water at 213 degrees celcius at a barometric pressure of 741mmhg vapor
when a compact disk with a 120cm diameter is rotating at 600rads what are the linear speed and the centripetal
polarized light passing though a sugar solution is rotated a polarimeter allows us to measure the size and direction of
the ev-1 electric car made use of storage batteries as its sourceof energy the car is powered by 26 batteries each 12v
a 450-kg person steps on a scale in an elevator the scale reads460 n what is the magnitude of the acceleration of the
a 605-g sample of a cu-zn alloy reacts with hcl acid to produce hydrogen gas if the hydrogen gas has a volume of 151 l