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Acetylene gas (C2H2) burns in the oxyacetylene torch for welding. Balance the chemical reaction by placing the proper coefficients in front of each reactant and each product.
a. C2 H2+
b. O2 ------>
c. C O2 +
d. H2O
The electric field in the copper wire of a household circuit is oriented along the wire, thus that it pushes electrons through the circuit. Find the magnitude of force that field exerts on electron
A 2700 ml- flask is initially open to air at 19 degrees C and 1 atm pressure. It's then closed and immersed in boiling water. How many moles escape when the air is released
A drug prepared for a patient is tagged with which has a half life of 6.05 h and an activity of 1.60 µCi when it was prepared. What is its activity at the time it is injected
In a room that is 2.35 m high, a spring (unstrained length = 0.22 m) hangs from the ceiling. A board whose length is 1.97 m is attached to the free end of the spring. The board hangs straight down, so that its 1.97-m length is perpendicular to the..
Two identical boxcars (m = 15730 kg) are traveling along the same track but in opposite directions. what will be the final speed of the pair
Two equally charged, 1.00 g spheres are placed with 2.00 cm between their centers. What is the magnitude of the charge on each sphere
The current in an RL circuit is zero at time t = 0 and increases to half its final value in 3.6 s. What is the time constant of this circuit
An archer releases an 0.025 kilogram arrow at a 50 degree angle with the horizontal with 300 meter per second of initial velocity. Obtain the component of the arrow initial velocity
Moon effect. Some people believe that the Moon controls their activities. If the Moon moves from being directly on the opposite side of Earth from you to being directly overhead, by what percentage does (a) the Moon's gravitational pull on you increa..
"Fat Man," the atomic bomb dropped on Nagasaki at the end of World War II released approximately 88 x 10^12 J of explosive energy. How much mass was converted into energy in this bomb
two capacitors c1 6.00 microf and c2 14.0 microf are connected in parallel and the resulting combination is connected
Calculate the total fraction of the initial kenetic energy of the cue ball dissipated by frictional forces between the felt of the table and the two balls spinning or sliding, before they finally attain rolling without slipping at their respective ..
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