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a simple pendulum is swinging back and forth through a small angle its motion repeating every 113 s how much longer
1 what is a zymogen how are they activated give an example2 what is a transition state and what is its relationship
a 958-m ladder with a mass of 222 kg lies flat on the ground a painter grabs the top end of the ladder and pulls
a camera lens usually consists of a combination of two or more lenses to produce a good-quality image suppose a camera
the activation energy of a certain reaction is 529 kjmol how many times faster will the reaction occur at 35 degrees c
an automobile has a 24 watt reading lamp in the ceiling of the carif it is attached to the 12 volt car battery how much
at normal incidence the intensity of sunlight at the earth is 1400 wm2 assume for simplicity that all of the incident
200 ml of a 010m weak acid ka 156x10-6 is titrated with a 020m strong basea what is the ph initially before any titrant
a rectangular loop is made up of 50 turns of wire and has dimensions of 45 x 55 cm it is located in a uniform 2 t
what is the ph of a 030 m pyridine solution that has kb19x10-9 the equation for the dissociation of pyridine is
a block of mass m135kg moves with velocity v163ms on a frictionless sufaceit collides with block of mass m217kg which
a solution is prepared by dissolving 172g of c2h6o2 in 500kg of h2o the final volume of the solution is 515ml calculate
the composition by mass of methyl alcohol ethyl alcohol n-propyl alcohol and water in two solutions a and b are given
a laser is used in eye surgery to weld a detached retina back into place the wavelength of the laser beam is 511 nm
naphthalene combustion can be used to calibrate the heat capacity of a bomb calorimeter the heat combustion of
you have a 200 resistor a 0400 h inductor a 500 f capacitor and a variable-frequency ac source with an amplitude of 300
millimoles of h in oxalic acid given the weight of oxalic acid h2c2o42h2o to be
a 150 ohm resistor is connected in series with a 0250 h inductor the voltage across the resistor is vr 380 cos 720t
the bones of a saber-toothed tiger are found to have an activity per gram of carbon that is 145 of what would be found
a wheel is rotating freely with an angular speed of 20 rads on a shaft whose moment of inertia is negligible a second
a 1200 car is moving on the freeway at 600 what is the magnitude of its momentum in si units what is the magnitude of
a quasars spectrum shows a shift in spectral lines of 0158 use the doppler-shift formula to determine what recession
a galaxy has a rotation speed of 200 kilometers per second at a distance from its center of 10 kiloparsecs what is its
a an ideal gas occupies a volume of 30 cm3 at 20degc and atmospheric pressure determine the number of molecules of gas
a steel wire with mass 255 g and length 116 m is strung on a bass so that the distance from the nut to the bridge is