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two negative point charges are separated by 110cm and feel a mutual repulsive force of 345nc the charge of one is
which of the following correctly shows intrachain hydrogen bonding in an alpha-helix a -nh hn- b -co hc- c -co hn- d
during a mountain climbing trip it is observed that the water used to cook a meal boils at 90degc rather than the
when 0941 mol of gaseous hi is sealed in a 100-l flask at 225degc it decomposes until the equilibrium amount of i2
a system of 1595 particles each of which is either an electron or a proton has a net charge of -5328times10-17 chow
one liter 1000 cm 3 of oil is spilled onto a smooth lake it the oil spreads out uniformly unit it makes an oil slick
you have discovered a new mammal and have studied the hemoglobin isolated from the blood of this uncharacterized animal
a village maintains a large tank with an open top containing water for emergencies the water can drain from the tank
a a sample of an ideal gas is at a temperature of 307 k the rms molecular speed at this temperature is measured as 2767
when a solution containing equal moles of hemoglobin and myoglobin is bubbled with a small amount of o2 a hemoglobin
a u-shaped tube is connected to a box at one end and open to the air at the other end the box is full of gas at
a ball rolls down a roof that makes an angle of 30 degrees to the horizontal the ball has an initial speed of 5 ms and
calculate the ph of an hcl solution if 165 ml of this hcl solution is titrated with a 0454 m naoh and it took 565 ml of
a sensitive gravimeter at a mountain observatory finds that the free-fall acceleration is 750times103 less than that at
draw the major organic product for 2r3s-2-bromo-3-methylpentane reacting with the given nucleophile indicate
two equally charged particles are held32x10 -3 m apart and then released from rest the initial acceleration of the
which of the following best describes a competitive inhibitor i a as i increases there is a decrease in vmax and an
a 34-kg girl is bouncing on a trampoline during a certain interval after she leaves the surface of the trampoline her
for serine pkalpha-cooh 221 and for leucine pkalpha-cooh 236 if a mixture of 10 millimoles each of serine and leucine
a train starts from rest and accelerates at rate of 160 ms2 for 100 s it runs at constant speed for 700 s and slows
a sailboat sails 180 km west then 210 km southeast and then 280 km at 30deg east of north after an additional
one enzyme under study in a is peptidylglycine alpha-amidating monooxygenase pam the molecular weight of monomeric pam
a race car is approaching a jump ramp with the ramp angle at 10 degrees and 20 meters long and is 347 meters off the
the first step in industrial nitric acid production is the catalyzed oxidation of ammonia without a catalyst a
when an enzyme is purified from a complex mixture of proteins what usually happens to the total amount of protein and