Find the speed-mass of sand
An empty freight car of mass M starts from rest under an applied force P. At the same time, sand begins to run into the car at steady rate b from a hopper at rest along the track. Find the speed when a mass of sand, m, has been transferred.
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How many carbon atoms are in the empirical formula? How many hydrogen atoms are in the empirical formula? How many oxygen atoms are in the empirical formula?
A spring with 55 hangs vertically next to a ruler. The end of the spring is next to the 20- mark on the ruler.If a 3.0- mass is now attached to the end of the spring, where will the end of the spring line up with the ruler marks?
What your toughts on business that are too big to fail? do you think the government should faclitate then with bail out money when they get into trouble or just let them fail?
The economy begins in the long-run equilibrium. Then one day, the president appoints a new chairman of the Federal Reserve. This new chairman is well known for his view that inflation is not a major problem for an economy. How would this news
Kc = 3.59 at 900 °C. For each of the following measured concentrations determine whether the reaction is at equilibrium. If not at equilibrium, in which direction will the reaction proceed to get to equilibrium.
Iron has a density of 7.87 g/cm3, and the mass of an iron atom is 9.27 × 10-26 kg. If the atoms are spherical and tightly packed, (a) what is the volume of an iron atom and (b) what is the distance between the centers of adjacent atoms?
A chair of weight 105 lies atop a horizontal floor; the floor is not frictionless. You push on the chair with a force of = 35.0 directed at an angle of 43.0 below the horizontal and the chair slides along the floor.Using Newton's laws, calculate,
The CaC2O4-H2O precipitate is not completely air-dried when its mass is determined. Will the reported mass of the limiting reactant in the original salt mixture be reported too high or too low? Explain.
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