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(i) Determine the velocity of the truck right after the collision? (ii) Determine how much mechanical energy is lost in the collision? Account for this loss in energy
explanation, a professor employs a razor blade to cut a thin slit in a piece of aluminum foil. If she shines a laser pointer () via the slit onto a screen 5.5 away, a diffraction pattern appears. Th
A sample of H2O is broken apart into O2 and H2 gas. Samples were collected over the water. The temperature is 22 degrees C. The external pressure was 760.0 mm Hg. The water level difference i
Determine what does the answer to this problem state about laws needing the use of proper safety devices like seat belts and special toddler seats?
Wiper blade is mounted on the 25 inch arm, 5 inches from pivot point. If wiper turns through the angle of 110 degrees, how much area is swept clean?
Explain how the type of reactions you observed in this experiment could be useful in there cycling of copper. The chemical conversion of one product into another useful product is the basis for recy
Suppose an aerosol container was filled with a gas at2.5 atm and 22 degree Celsius. Aerosol containers often carry the warning that they should not be heated.
You encompass a distance among the two slits which is 0.0500 mm and the distance to a screen is 2.50 m. Determine the spacing among the first and third order bright fringes for light which consists
Diborane, B2H6 (B) and methylethyl ether (A), form a compound that melts congruently at the 133 K. The system exhibits two eutectics, one at 25 mol per cent B and 123 K and a second at 90 mol per c
A certain telescope always generates fuzzy halos or circles around the image of the bright star. When it consists of high quality lenses, what is probably wrong with the choice of the telescope?
If there are 4.50×1010 atoms of zinc emitting light in the instrument flame at any given instant, the emission line used for zinc determinations in atomic emission spectroscopy is 2
A clear sheet of Polaroid is positioned on top of an identical sheet so that their polarizing axes forms an angle of 30° with one other. The ratio of the intensity of emerging light to incident
Consider x denote length of side of each cut-out square. Determine the formula for volume of box as the function of x. How would the diagram of question look?
Illustrate phase diagrams for the following types of systems. Label intersections and the regions of the diagrams, stating what materials are present and whether they are solid, liquid, or gas.
Methane burns in oxygen to form water and carbon dioxide. If 3.75 L of gaseous CH4 is burned in an open container at STP, what volume of oxygen is needed for complete combustion? Explai
A hole is drilled in the mass-less rod system from the first question. This hole is one third 1 from the larger mass. When a peg is placed via the hole and the system is now rotating around this peg
Determine the total energy needed in calories to totally melt the 160g of this compound of its melting point of 30 degrees Celsius if the Delta Heat Fusion of Copper Sulfate (CuSO4) is 10 kg/mole.
The two masses are joined altogether by a mass-less rod of length 1. One mass is one third the mass of the other. They are rotating with the angular velocity of w. Determine the moment of inertia an
A mixture if oxygen and cyclo propane gas is used as an anesthetic. Cycloprapane contains 14.3%H and 85.7% C by mass. At 50.0C and 0.984 atm pressure, 1.56 g cycloprapane has a volume of 1.00L. Det
A 2 cm broad object is positioned 3cm in front of the 1cm focal length concave mirror. The final image will be:
Determine the pressure of this mixture of gases if 20.0g of 02 and 4.4 g of CO2 are placed in a 5.00 L container at 21C.
Limestone (CaCO3) is used to remove acidic pollutants from the smokestack flue gases. It is heated to form lime (CaO), which reacts with sulfur dioxide to form calcium sulfite.
Particle 1 having mass m1 and a velocity of v1 strikes Particle 2 which consist of a mass m2 and is at rest. The collisions are inelastic and stick altogether. Determine the final velocity of the ne
Determine the activity coefficients for both species in a solution that is a) 0.040 M in FeSO4; b) 0.20 M in (NH4)2CrO4; c) 0.10M in FeCl3 and 0.20M in FeCl2; d) 0.10 M NaCl.
A meter stick is found to balance the 49.7 cm mark if positioned on the fulcrum. If a 45.0 gram mass is joined at the 9.0 cm mark, the fulcrum should be moved to the 39.2 cm mark for balance. Determ