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an electrically neutral charge can be given a net charge by several means does this violate the conservation of charge
humans can detect a difference in sound instensity levels of 10db what is the ratio louder to softer of the sound
a racing dog is initially running at 100 ms but is slowing downa how fast is the dog moving when its kinetic energy has
radioactive isotopes are often introduced into the body through the bloodstream their spread through the body can then
using the hume-rothery rulesa determine if ni should dissolve easily in cu show that your determination is correct by
the temperature of 200 moles of argon gas is lowered from 280 102 k to 190 102 ka find the change in the internal
calculate the ph of 100 ml of 028 m nh3 before and after the addition of 45 g of nh4no3 and account for the change
an infinitely long line of charge has a linear charge density of 500times1012 cm a proton is at distance 120 cm from
a thermometer containing 95 of mercury has broken if mercury has a density of 136 what volume
while an elevator of mass 832 kg moves downward the tension in the supporting cable is a constant 7730 n between t 0
in hexaphenylbenzene synthesis using tetraphenylcyclopentadiene and diphenylacetylene what volume of carbon monoxide
suppose you are planning a trip in which a spacecraft is to travel at a constant velocity for exactly nine months as
at a ph of 4 the cu-neocuproine complex formed in the liquid-liquid extraction experiment has a partition coefficient
how many non-bonding valence electrons are there in a molecule of citric acid please show how to calculatecount them
a bird is launched at a speed of 25 meters per second at an angle of 29deg to horizontal from a height of 13m above the
the ionization energy of co is greater than that of no explain this difference based on the elctron configuration of
write a mechanism for the formation of n-2 4-dinitrophenyl aniline via nucleophilic aromatic substitution show all
an electron and a positron have masses of 911 10-31 kg they collide and both vanish with only electromagnetic radiation
two flexible balls rolling along a frictionless horizontal surface collide with each other the larger of the balls
1calculate the millimoles of sodium hypochlorite used in the reaction 23ml of a 525 solution clorox compare this value
a diffraction grating 230 mm wide has 5780 rulingscalculate the distance d between adjacent rulingsfind the angle at
1 calculate the millimoles of sodium hypochlorite used in the reaction 23ml of a 525 solution clorox compare this value
a target glider whose mass m2 is 340 g is at rest on an air track a distance d 53 cm from the end of the track a
if a given element has a mass that is 581 times that oc 12 c how do i figure out the mass and the element do i just
an unknown gas is held in 2 separate containers with identical number of moles of gas the volume of container 2 is 0347