How must you adjust the length of the pendulum
Your grandfather clock's pendulum consists of a length of 0.9800m. When the clock loses half a minute per day, how must you adjust the length of the pendulum?
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A 2.42 gram sample of PCl 5 was placed into an evacuated 2.00L flask and allowed to partially decompose at the 250C. According to this equation:
Write down a structural formula and give two acceptable IUPAC names for each alkene of molecular formula C7H14 that has a tetra substituted double bond.
Determine the frequency of the sound received through a stationary observer when the source moves toward her?
Suppose that the density and specific heat of the dilute aqueous solution are the same as those of H_2_O and determine the molar hear of solution of potassium hydroxide when 4.21 grams of potassium hydroxide are added to 250 ML of water.
The distribution coefficient, K = [ether]/[water] is 10 for compound Y. Explain what weight of compound Y would be removed from a solution of 4.0 g of Y in 100 mL of water by a single extraction with 100 mL of ether?
Mark pushes his broken car 140 m down the block to his friend's house. He has to apply a 160 N horizontal force to push the car at the constant speed. Determine how much thermal energy is made in the tires and road throughout this short trip?
The standard enthalpy of combustion to CO2 (g) and H2O (l) at25*C of cyclohexane, C6H12 (l), is -3924 kj/mol. Determine the standard heat of formation of cyclohexane:
A device undergoes a voltage drop of 5.0 V across it while a current of 3.0mA flows through it. Determine how much power does it dissipate?
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