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calculate the volume of 50 wt naoh solution needed to be diluted to 1 liter in order to make 1 liter of 01 m naoh
a man enters a tall tower needing to know its height he notes that a long pendulum extends from the ceiling almost to
for the first-order reaction below the initial concentration of a is 0240 m if the concentration of a decreases to
a quarter diameter 240 cm is held at arms length 640 cm the sun has a diameter of 139 x 109 m and is 150 x 1011 m from
a 680-o resistor is connected in series with a 760-microf capacitor and a generator having a maximum voltage of 120 102
1 the string in a yo-yo is wound around an axle of radius 0529 cm the yo-yo has both rotational and translational
as a result of photosynthesis 10 kg of carbon is fixed per square meter of forest assuming air is 0046 co2 by weight
1 a solid sphere of mass 0595 kg rolls without slipping along a horizontal surface with a translational speed of 549 ms
an evaluation of r was performed following the procedure described in this module the barometric pressure was 736 torr
a simple 232 m long pendulum oscillates the acceleration of gravity is 98 ms2how many complete oscillations does this
1 what is the balanced equation of the reaction between vanillin and sodium hydroxide2 after the above reduction is
loudspeakers a and b are 700 m apart and vibrate in phase at 172 hz they radiate sound uniformly in all directions
what are two most important characteristics of good recrystallization solvent for a given
what is the electric field amplitude of an electromagnetic wave whose magnetic field amplitude is 20
which one of the following is not one of the five gaseous components in highest concentration in the
a pilot of an air plane travelling at 130kmhr wants to drop food supplies on a patch of land 250m below the package has
draw and name the six ethers that are isomeric with c5h12o which of them are
a 0344 kg mass is attached to a spring and undergoes simple harmonic motion with a period of 095 s the total energy of
when water freezes it expands about 873 what would be the pressure increase inside your automobile engine block if the
when nine people whose average mass is 88 kg sit down in a car they find that the car drops 142 cm lower on its springs
a 3-kg block is pulled along a frictionless surface with a force of 42n it is attached to 1-kg block on the same
in a laboratory a wavelength of a particular hydrogen emission line balmer beta line is observed as 4861 nm if the same
a proton charge 16e-19c and mass 16e-27kg is released from rest at 1m away from a very large flat insulator sheet which
a proton of mass mp and charge qp e deuteron of mass 2mp and charge qd e and alpha particle of mass 4mp and charge qa