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a motor has an armature resistance of 25 ohms if it draws 10 a when running at full speed and connected to a 100 v line
a 250 g piece of lead is heated to 300 celsius and placed into a beaker containing 500 ml of water how much heat energy
the drawing shows four point charges the valueof q is 30 muc and thedistance d is 063 m find the total potentialat the
a mass connected to a horizontal spring sits on a frictionlesstable the mass is moved to compress the spring and the
a styrofoam slab has thickness h and densityrhos when a swimmer of mass m isresting on it the slab floats in fresh
normal atmospheric pressure is 1013 multiplied by 105 pathe approach of a storm causes the height of a mercury
consider rutherfordrsquosexperiment would the estimated size of the nucleus be greater smaller or the same if he has
there are two stable isotopesof the element lithium one of them has three neutrons and the other has four all other
two parallel circularrings of radius r1 m have their centers on the x-axis separated bya distance of 2 m planes of the
a box with a mass of 10 kg is moving to the right its initialspeed is 2 ms after traveling 3 m its speed is 4 ms
a cat spots a flowerpot that sails first up and then down past an open window the pot is in view for 050 seconds and
can you split up a solid when it is a reactant when finding the net ionic equation so in this case mgco3
what energy is released in mev during a reaction in which 167 x10-25 kg of material is converted to energya 50 x 10-14
when blowing across a narrow mouth glass the less wter in the glass the deeper the frequency heard but if the top of
the ph of a 0500 solution of an aqueous weak acid ha is 230 calculate the ka for the weak
kathy buys a sports car that can accelerate at the rate of 49 mss she decides to test the car by racing with her friend
a child wants to pump a bicycle tire so that its pressure is25x105 pa above that of atmospheric pressure if the child
a wheel of diameter 30 cm has a 40-m cord wrapped around itsperiphery starting from rest the wheel is given a constant
a singly charged ion of iodine makes 7000rev in a field of 450mt in 1290ms calculate its mass in atomic mass units
on a plot it shows the absorbance of a cuno33 solution increased as it concentration increased do you think this
a solid sphere is rolling without slipping along a horizontalsurface with a speed of 550ms when it starts up a ramp
is it possible for a fluorescent material to emit radiation in the ultraviolet region after absorbing visible
find the location of the center of mass of a nonuniform rod 038 min length if its density varies linearly from 096 gcm
you order two primary standards of ultra pure k2so4 174260 gmol and na2so4 142043 gmol for an experiment when they are
you are with 19 other people on a boat at rest in frictionless water your total mass is 1300 kg and the mass of the