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normal gastric juice has a ph of about 2 assuming that gastric juice is primarily aqueous hcl what is the hcl
a ball of mass 015 kg is dropped from rest from a height of 135 m it rebounds from the floor to reach a height of 096
a u-shaped tube is partly filled with water and partly filled with a liquid that does not mix with water both sides of
a non-ideal battery has an emf of 240v when no current is drawn and a terminal voltage of 22v when a 100 resistors is
what is the energy of photon required to cause the electron in a hyrogen atom to undergo a transition from n2 state to
a 50-uf capacitor is charged so that the voltage drop across its plates is 50v a 100-ufcapcitor is similarly charged so
the electron in the n1 state of a hydrogen atom absorbs a photon with an energy of 212x10-18 j what is the final state
a pitcher throws a curveball that reaches the catcher in 064 s the ball curves because it is spinning at an average
if the average bohr radius in the n1 orbit 325x10-8m what is the wavelength of the standing electron
a 92 kg astronaut and a 1200 kg satellite are at rest relative to the space shuttle the astronaut pushes on the
which of the following sets of the four quantum numbers n 1 ml and ms describes one of the outermost electrons in a
suppose air with a density of 129 kgm3 is flowing into a venturi meter the narrow section of the pipe at point a has a
a chemist trying to synthesize a particular compound attempts two different synthesis reactions the equilibrium
as a technician in a large pharmaceutical research firm you need to produce 450ml of 100m potassium phosphate buffer
the mars rover is moving along at a speed of 2 ms it knows how to motor in a straight line and in its sights it spies a
an electron has a velocity of 60 106 ms in the positive x direction at a point where the magnetic field has the
you need to produce a buffer solution that has a ph of 550 you already have a solution that contains 10 mmol millimoles
an automatic dryer spins wet clothes at an angular speed of 42 rads starting from rest the dryer reaches its operating
a wind turbine is initially spinning at a constant angular speed as the winds strength gradually increases the turbine
if you shake one end of a taut rope steadily five times each second what would be the period of the sinusoidal wave set
a conductor is found to be transparent to ultraviolet light with wavelengths shorter than 200 nm assuming a
a consider the hypothetical reaction a 2b for which go is -166 kjmol in a certain experiment the initial concentrations
two parallel square metal plates side length 13 cm are separated by a dielectric material with a dielectric constant 39
a disk of radius r has a hole in the center of radius a like an audio compact disk if the disk holds a uniform surface
a mass of 4 kg is pulled along a 0 deg frictionless plane by a mass of 5 kg that is hanging perpendicular connected by