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calculate the most probable speed of an ozone molecule in the stratosphere where the temperature is 270
for the following electrochemical cell cuscu2 aq 00155 mag aq 150 mags write the net cell equation phases are optional
what lift force is necessary for a 5200 kg helicopter to have an acceleration of 23 mssa 168n sign is supported from
a current of 424 a is passed through a crno32 solution for 120 hours how much chromium is plated out of the
two forces act on an object a 36-n force acts at 225o a 48-n force acts at 315o what would be the magnitude and
tell whether reactions with the following values of h and s are spontaneous or nonspontaneous and whether they are
a heavy box is pulled across a wooden floor with a rope the rope makes an angle of 60o with the floor a force of 75n is
calculate the cell potential for the following reaction as written at 59 degc given that zn2 0874 m and sn2 00170 m
a car mass 1060 kg is traveling at 39 ms when it collides head-on with a sport utility vehicle mass 2380 kg traveling
what is the phase of the standard states of the following elements and compounds
the angular momentum of a flywheel having a rotational inertia of 0242 kgmiddotm2 about its central axis decreases from
titanium metal is used as a structural material in many high-tech applications such as in jet engines what is the
an automobile has a mass of 1690 kg and a velocity of 238 ms it makes a rear-end collision with a stationary car whose
used in welding metals the reaction of acetylene with oxygen has h0 -12562kj c2h2g 52 o2g ---------h2og 2co2gh0
the value of deltah for the reaction ch3oh l----gtco g 2h2 g is 1281 kj how many kj of heat are consumed when 510 g of
the index of refraction for crown glass is 1512 at a wavelength of 660 nm red whereas its index of refraction is 1530
the enthalpy change for the reaction of 500ml of ethylene with 500ml of h2 at 15atm pressure problem h 031kj what is
a circular loop in the plane of the screen lies in a 061 t magnetic field pointing into the screen if the loops
the addition of h2 to cc double bonds is an important reaction used in the presentation of margarine from vegetable
a 12 microf capacitor has an electric field of 08x105 vm between two metal plates 11 mm aparta what is the voltage
suppose that a compound x can be made from the reaction of two other compounds a and z a write a balanced equilibrium
in a series rlc circuit the resistance is 51 o the capacitance is 39 microf and the inductance is 62 mh the ac
which reaction responds more strongly to changes of temperature one with an activation energy of 52 kj mol-1 or one
a 021-kg ball on a stick is whirled on a vertical circle at a constant speed when the ball is at the three oclock
a transformer has 330 primary turns and 1340 secondary turns the input voltage is 120 v the output current is 15 a what