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you have two lenses separated by 25cm lens one is onthe left it has a focal length of 15cm lens two is on theright it
a sample of an unknown peptide udergoes a single round of edman degradation which liberates atzgly another sample of
a 1500 kg car traveling at 90 kmh east collides with a 3000kg car travling at 60 kmh south the two cars stick together
a container of volume 040m3 contains 33 mol ofargon gas at 28degc assuming argonbehaves as an ideal gas find the total
in 501 grams of water the solubility of kf is 101 grams how many grams of kf dissolve in 1330 grams of
three children each of weight 356n make a log raft bylashing together logs of diameter 030m and length 180m how many
the student sits on a pivoted stool while holding a weight ineach outstretched hand the stool rotates about a
if the instantaneous initial rate of reaction is 0000145 ms calculate the initial instantaneous rate of change of h2
light in vacuum is incident on the surface of a slab oftransparent material in the vacuum the beam makes an angle
a recording engineer works in a soundproofed room that is520 db quieter than the outside if the sound intensity in the
a researcher places 2 grams of lithium into a large beaker of water and catches the hydrogen gas being evolved since
a simple pendulum consists of a ball connected to one end of athin brass wire the period of the pendulum is 181 s
a styrofoam box has a surface area of 080 m2 and a wallthickness of 20 cm the temperature of the inner surface is50
in a hydraulic system the piston on the left has a diameterof 51 cm and a mass of 17 kg the piston on the right has
when four people with a combined mass of 319 kg sit down in acar they find that the car drops 25 cm lower on its
a number of chemical reactions have been proposed for the formation of organic compounds from inorganic precursors here
one gram of water changes from liquid to solid at a constantpressure of 100 atm and a constant temperature of 0degc in
discuss the advantages and disadvantages of the electoral
in a water tank experiment water waves are generated withtheir crests 25 cm apart and parallel they pass though
q1 lesson 7 presented several national policy matters that have developed over the past 10 to 20 years please explain
an organic acid has a molecular weight of 192 a 100 mg sample of this acid was burned in an excess of oxygen in the
a tire is filled with air at15degc to a gauge pressure of 210kpa if the tire reaches a temperature of 36degc what
one of the flashpoint issues of recent political discussions and elections is the concept of judicial activism
an object has a total energy of 50x1015 j and a kinetic energy of 20x 1015 j what is the magnitude of the objects
carbon tetrachloride was widely used for many years as a solvent until its harmful properties became well established