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two parallel plates have a capacitance of 10 microf when they are 10 mm apart the plates are then fully charged by a 90
why is the c-c bond length in naphthalene c10h8 between the typical single c-c bond length and the typical cc double
in the structure of phenacetin is the nh group attached to the co and aromatic would the nh group be considered an
a 20 kg box of running shoes slides on a horizontal frictionless table and collides with a 10 kg box of ballet slippers
140 ml of a 175 m aqueous solution of nh3 is titrated with a 106 m solution of hcl nh4 ka556x10-10what is the pha
a thin film of alcohol n136 lies on a flat glass plate n151 when monochromatic light whose wavelength can be changed is
what volume in ml of 01085 m h2so4 would react exactly with 400 ml of a 0995 m solution of koh by the reactionh2so4 aq
ground beef may be irradiated with high-energy electrons from a linear accelerator to kill pathogens in a standard
a 40-year-old manager at a prominent legal firm in la experiences abdominal pain post lunch he goes to the restroom a
we know from experience that the doppler shift of sound from a moving car is easily detectable assuming light with a
phosphate systems form essential buffers in organisms calculate the ph of a buffer made by dissolving 8 mol of naoh in
a point source of sound that emits uniformly in all directions is located in the middle of a large open field the
write a balanced equation for the following reaction nitric acid reacts with calcium hydroxide to produce water and
when is the standard enthalpy of a reaction for which the equilibrium constant is doubledwhen the temperature is
the distribution of na ions across a typical biological membrane is 10 mmol l-1 inside the cell and 140 mmol l-1
find the minimum frequency a photon must have if it is to ionize the n 1 state of a doubly ionized lithium
suggest a reason that tlc plates that are stored in a highly humid room result in different rf values than plates that
two point masses m1 2 kg and m2 1 kg are connected by a thin massless rod of length l 2 m and are freely rotating in
a 55 kg person is at rest at the left end of a floating 180kg log it starts to run toward the other end with a velocity
solubility of mgoh2 in water is 90z10-4 g100ml what volume of 006 m hno3 is required to neutralize10l of saturated
white light with frequencies ranging from to is incident on a potassium surface the work function of potassium is 224
why are the injection port and detector always heated to higher temperatures than the column in a gas
a sample consisting of 125 g of solid magnesium carbonate was heated to 670degc where it decomposed if the heating is
a at what angle should the axes of two polaroids be placed so as to reduce the intensity of the incident unpolarized
a 57 kg block attached to a spring executes simple harmonic motion on a frictionless horizontal surface at time t0s the