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when performing an experiment in chemistry with a spectrophotometer to determine a calibration curve for a given
explain what is the formula you will use to calculate how many millilitres of 55 m naoh are required to prepare 400 ml
explain what is the metal used to extract copper from the solution of copper
explain what is the difference between fractionation and
two 23-cm-diameter-disks spaced 18 mm apart form a parallel-plate capacitor the electric field between the disks is
movie scenes perpetuate a completely wrong idea where shooting victims are often portrayed being knocked off their feet
having some difficulty in this onein table 5-2 various cross sections are specified for thermal neutrons in different
a particle of mass 7 times 10-5kg and charge1 microc moves downward from point a to pointb a distance of 6 m in the
what is the magnitude of the electric field if one charge is positive and the other negative both of magnitude 48
1 a 1300 kg car moving at 50 ms is stopped by the actions of its brakes the work done by the cars brakes
for a satellite at a height of 22300 miles at what speed must the satellite be traveling to achieve a circular orbit
anna is driving from champaign to indianapolis on i-74 she passes the prospect ave exit at noon and maintains a
a cannon shell is fired straight up from the ground at an initial speed of 234ms after how much time is the shell at a
a truck loaded with sand accelerates along a highway the driving force on the truck remains constant what happens to
a blue ball is thrown upward with an initial speed of 228 ms from a height of 06 meters above the ground 28 seconds
show that brewsters law where the incident angle thetaithetap and snells law together imply that thetap theta2 90
the index of refraction for diamond is n242 if you shine light on diamond at an angle of theta 23 degrees from air
jerome and paul are competitive brothers they live on a small farm on the northern bank a river that runs purely east
at the top of a hill f the rollercoaster crests the 50 meter radius curve at 60 ms the mass of the passenger is 60 kg
you are standing at the second-floor window of your dorm room trying to hit a target outside the building at ground
two waves and are given by the equations y1 25 sinpix 5t and y2 25 sinpix 5t a determine the equation of the
an ambulance emits a 400 hz sound while standing at the fire station a passenger in a car detects a frequency of 420 hz
1 a sinusoidal wave train is described by y 05 sin pix 4t 12 where x and y are measured in centimetersa what is the
a string with a mass of 6 g and a length of 4 m has one end attached to a wall the other end is passed over a pulley