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during the course of an experiment 100 ml of water is added to 250 ml of aqueous 0120 m nacl what is the concentration
the length of a simple pendulum is 083 m and the mass of the particle the bob at the end of the cable is 025 kg the
a tuning fork vibrating at an unknown frequency is held over the open end of a tube partially filled with water if the
a standing wave has been created on a string of length 15m the frequency of the wave is 25hz the ends of the string are
using data from table 134 in the textbook calculate the freezing and boiling points of each of the following 1 040 mol
a 700kg car stopped at an intersection is rear-ended by a 1800kg truck moving with a speed of 160 ms if the car was in
an electron with a speed of 600106 ms collides with an atom the collision excites the atom from its ground state 0ev to
how many grams of calcium hydroxide are obtained in the reaction of 600 gms of calcium with
write out a detailed procedure for determining the enthalpy of reaction between citric acid h3cit and sodium hydroxide
you have landed on an unknown planet newtonia and want to know what objects will weigh there you find that when a
given that power through a circuit element is p i v where i is current through the element v is potential change
a piece of nichrome wire passes a current of 0813 a when a potential of 144 volts is applied what is the resistance of
you measured the speed of sound to be 3489 ms your lab partner measured it to be 313 ms what was the percent difference
if you did an experiment and measured g to be 93 ms2 and the accepted value is 981 ms2 what was your percent
suppose you measure a cylinder and determine that the radius is 052 001 cm and its height is 320 015 cm what is the
in downhill speed skiing a skier is retarded by both the air drag force on the body and the kinetic frictional force on
two particles rest at a distance d apart on the edge of a table one of the particles of mass m falls off the edge and
a 50-microc charge experiences a 046-n force in the positive y direction if this charge is replaced with a
a 75 g spherical ball rolls without slipping down a ramp that makes an angle of 20 degrees with the horizontala find
at 14 degree celsius it takes 726 minutes 446 sec for acetone hcl and iodine solution color changed from yellow to
two wires are identical except that one is gold resistivity 244times10-8 middotm and the other is nichrome resistivity
an oscillator with a natural frequency of 480 hz is driven by a 540 hz sinusoidal signal at what frequency does it
a circuit consists of a 120-v battery connected to three resistors 41ohms 19ohms and 110ohms in seriespart afind the
a 20 n force is applied to the plunger of a hypodermic needle the diameter of the plunger is 12 cm and that of the
what is the shortest and non-trivial channel impulse response that has zero amplitude response at both zero frequency