Discuss the numbers of iron atoms are within a unit cell
Determine the numbers of iron atoms are within a unit cell when the metallic iron crystallizes in a cubic lattice and the unit cell length is 287pm. the density of iron is 7.87g/cm^3.
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A jogger of 85 kg is heading due to east at a speed of 2.5 m/s. A jogger of 55 kg is heading 30° north of east at a speed of 3.9 m/s. Determine the magnitude and direction of the sum of momentum of the two joggers.
Explain how long will reaction take for1/8 the reactant concentration to drop the initial value of reactions because some certain have the first-order reaction which is having a rate constant of 2.60×10-3 s-1.
A volley-ball is spiked so that its incoming velocity of +4.0 m/s is modified to an outgoing velocity of -20 m/s. The mass of the volley-ball is 0.42 kg. Determine the impulse which does the player exert to the ball?
In both formulas x is year, where x=0 corresponds to september 1998. Suppose these trends continue, evaluate year when population of west goma will equal population of east goma.
The population of the small country increases according to function B = 1,600,000e^0.03t, where t is measured in years. How many people will country have after one year?
The pendulum of length 14.0 inches swings 4°21' to each side of vertical position. To nearest hundredth of the inch, find length of arc through which end of pendulum swings?
A rod of aluminum-alloy consists of a length of 10.000 cm at 20.000oC and a length of 10.015 cm at the boiling point of water. (i) Determine the length of the rod at the freezing point of water?
From the distance of 43 feet from base of the building angle of elevation to top of building is 63°. Find height of building to nearest foot.
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