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an automobile has a mass of 1600 kg and a velocity of 222 ms it makes a rear-end collision with a stationary car whose
german physicist werner heisenberg related the uncertainty of an objects position x to the uncertainty in its velocity
a concave mirror r 64 cm is used to project a transparent slide onto a wall the slide is located at a distance of 400
calculate the energy of a photon emitted when an electron in a hydrogen atom undergoes a transition from n3 to n1
a sample of protein weighs 0800 g and is dissolved in 500 ml of water if the osmotic pressure of the solution is
a lactic acidlactate ion buffer solution contains 024 m hc3h5o3 and 082 m c3h5o3- respectively the ka value of lactic
br2 is being formed from hbr and h2o through the following chemical reactions under standard conditions 1 hbr-gt12h2
ethane enters furnace at 09 kgmin and burns with 200 excess air 50 of fuel is consumed and combustion is assumed
the analysis of a compound shows that it contains 200 h and 800 c the empirical formula
the freezing point of mercury is -388 c what quantity of energy in joules is released to the surroundings if 100 ml of
a graduated cylinder contains 247 ml of water after adding 3256 grams of a solid the volume reading of the cylinder
your roommate is working on his bicycle and has the bike upside down he spins the 64 -diameter wheel and you notice
calculate how many g of iron can be produced using 2396 of if the yield is 82 fe2o3 3co ----gt 2fe
flywheels are large massive wheels used to store energy they can be spun up slowly then the wheels energy can be
natural gas is a mixture of many substances primarily ch4 c2h6 c3h8 and c4h10 assuming that the total pressure of gases
calculate the apf for a the simple cubic and b body centered cubic lattices as volume of atomsvolume of cell c which
in a series circuit a generator 1423 hz 163 v is connected to a 162-o resistor a 413-microf capacitor and a 492-mh
draw the mechanism of the addition of hbr to cyclohexene identify each step indicate
an audio amplifier represented by the ac source and the resistor r delivers alternating voltages at audio frequencies
incident photons strike a soduim surface having a work function of 22 ev causing photoelectric emission when a stopping
a small sphere whose mass is 700e-03 g carries a charge of 200e-08 c it hangs from a silk thread which makes an angle
a rock is dropped from a tree of height 25 m into a lake depth 50 m below after entering the water the rock then floats
if the magnitude of the drift velocity of free electrons in a copper wire is 712 10-4 ms what is the electric field in
using a map of the united states we find that atlanta ga is in a direction north of east from dallas tx the same map
considered an elastic collision in one dimension in which one of the objects is initially at rest notice that mass 2 is