Mechanical energy of the projectile-earth system
A 9.45 kg projectile is fired vertically upward. Air drag decreases the mechanical energy of the projectile-Earth system by 69.0 kJ during the projectile's ascent. How much higher would the projectile have gone were air drag negligible?
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A 0.22 m(micro)F capacitor by a 1.5-V battery. After being charged, the capacitor is connected to a small electric motor. Assuming 100% efficiency.
The actual value of Keq at 350 C is 1.94*10^-4. How large is the error assuming constant deltaHR? d) At what pressure will the equilibrium conversion be 50% at 350 C?
Consider a deck of 52 cards with 13 hearts, 13 spades, 13 clubs, and 13 diamonds and assume that a card is drawn at random. Define a random variable X to be 1 if a heart is drawn, 2 if a spade is drawn, and 3 if either a club or a diamond is drawn
If the final temperature of the mixture within the vessel is 27 degree C, determine the mass, in kg, of each component present.
The aldol reaction is catalyzed by acid as well as by base. What is the reactive nucleophile in the acid-catalyzed aldol reaction? Propose a mechanism.
From the chart of the nuclides, for each of the two decay transitions what are the parent and daughter nuclides, the atomic mass numbers and atomic numbers, the modes of decay and energies, and the half lives of each isotope.
Synthesize (3S,4R)-3,4-dibromo-1-cyclohexylpentane (and its enantiomer, since a racemic mixture will be formed) from ethyne, 1-chloro-2-cyclohexylethane, and bromomethane and any other reagents as necessary.
Three cards are drawn without replacement from the 12 face cards (jacks, queens, and kings) of an ordinary deck of 52 playing cards. Let X be the number of kings selected and Y the number of jacks. Find
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