What horizontal distance does it travel
A baseball is hit with a speed of 27.0 at an angle of 47.0. It lands on the flat roof of a 12.0 -tall nearby building. If the ball was hit when it was 1.2 above the ground, what horizontal distance does it travel before it lands on the building?
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A mass of 47.5 g of H2O(s) at 273 K is dropped into 225 g of H2O(l) at 298 K in an insulated container at1 bar of pressure. Calculate the temperature of the system once equilibrium has been reached. Assume that CP,mfor H2O is constant atits value
One mole of calcium carbonate reacts with ammonia to produce CaCN2 and liquid water. The reaction absorbs 90.1 kJ of heat. Calculate the Triangle H degree f for calcium cyanamide.
If an ice cube, one inch on a side, is placed in the box and the box placed in an ambient medium at 90F with an external heat transfer coefficient of h=10W/m^2K, how long is required for half the ice cube to melt?
A cylinder with a moveable piston contains 0.76 of gas and has a volume of 330. What will its volume be if an additional 0.27 of gas is added to the cylinder?
First determine the number of moles of rm Na^+ using the given molarity and volume. Next, use the chemical formula to determine the number of moles of rm Na_3PO_4 needed. Finally, convert moles to grams using the molecular weight of the compound.
For a solution having 1 x 10-3 equivalents/liter total alkalinity (contributions from HCO3-, CO32- and OH-) at [H+]=4.69 e-11, what is the percentage contribution to the alkalinity from CO32-?
Assume that a seismically excited system is accurately modeled by a mass attached to the ground by a spring and a damper in parallel. You need to determine whether the weld connecting the spring to the mass will hold
Find the velocity of an electron emitted by a metal whose threshold frequency is 2.15×1014 {rm s^{-1}} when it is exposed to visible light of wavelength 4.76×10-7 {rm m}.
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How can I rephrase this paragraph? The exploration between the "Personal unconscious" and the "Collective Unconscious" in C.G. Jung's perspective
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