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a string passing over a pulley has a 370 kg mass hanging from one end and a 260 kg mass hanging from the other end the
calculate the expansion work done when 50g of water is electrolysed under constant pressure at 25cthe correct answer is
a dad pushes tangentially on a small hand-driven merry-go-round and is able to accelerate it from rest to a frequency
a free particle of mass m in a one-dimensional box with infinite walls at x0 and xl given by the potential functionvx 0
calculate the volume of h2 in ml required to hydrogenate 272 g of trans-carveol at
recently a new element has been isolated temporarily named ununseptium with atomic number 117 the longest-lived isotope
a light beam containing red and violet wavelengths is incident on a slab of quartz at an angle of incidence of 853deg
using stock titrant concentration of 01000moll naohamp160 find naoh concentration 125 dilution 10ml pipetted in 250 ml
write the equalities and conversion factor to complete the following problems use scientific notation and the correct
how many atoms of copper are in a pure copper penny that weighs 215 g 1 amu 16605 10-24
in nature the element x consists of two naturally occurring isotopes 107x with abundance 5284 and isotopic mass 1069051
yellowstone lake has an area of 88960 acres how many liters of pure oleic acid molecular mass 2825 and density 895
1 which unit would you most likely use to measure the difference between the elevation of an airplane in flight and the
a car moving at 10 ms encounters a bump that has a circular cross-section with a radius of 30 m what is the normal
a 075 l bottle is cleaned dried and closed in a room where the air is 22 degree celsius and 44 relative humidity that
how much heat is associated with converting 100g steam at 112 degrees c to ice at -53 degrees
a block of mass m1 on a smooth horizontal surface is connected to a ball of mass m2 by a lightweight cord over a
what can be a valid hypothesis for determining the mole ratios of the chemical reaction of baking soda with
the monoterpenoid rose oxide systematic name tetrahydro-4-methyl-2-2-methylpropenyl-2h-pyran or iupac name
a diamond has a face-centered cubic unit cell with four more c atoms in tetrahedral holes within the cell densities of
a spacecraft moving away from earth emits a 4990 hz signal a scientist on earth measures the signal to be 4989 hz what
a 25 turn circular coil of length 55 cm produces a magnetic field of magnitude 25 mt at its center find the current in
in making computer chips a 400 kg cylindrical ingot of ultrapure n-type doped silicon that is 520 inches in diameter is
a loundspeaker diaphragm is producing a sound for 21 s by moving back and forth in a simple harmonic motion the angular
a u-tube manometer filled with mercury is connected between two points in a pipeline if the manometer reading