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A lead ball is dropped into a lake from a diving board 5 m above the water. After entering the water, it sinks to the bottom with a constant velocity equal to the velocity with which it hit the water. The ball reaches the bottom 3 seconds after it is released. Use g= 9.8 m/sec^2.
a) Draw a motion diagram for the problem.
b) How deep is the lake?
suppose you have a buffer at ph 5.0 that is 1.00 m in hx and 1.00 m in x- where hx is a weak acid with ka 1.0 x 10-5
What is the net force of a 5.0 N force and an 8.0 N force acting on an object for each of the following conditions?
Calculate the molar mass of the compound if given that normal freezing point of C6H6 = 5.5 oC , the freezing point depression constant for C 6 H 6 = -5.12 o C/m .
HNO3 was required for complete reaction with 0.8784+or- 0.0008g of Na2CO3 (FM 105.988+or- 0.001). Find the molarity of the HNO3 and its absolute uncertainty
Wine is made by adding yeast to grape juice. What concentration of glucose in grams per liter must the grape juice contain to produce wine that is 11% ethanol by volume? (take the density of ethanol to be 0.789 g/mL^-1) C6H12O6(aq)----> 2CH3CH2OH(..
What is the maximum mass in grams of aluminum chloride that could be obtained from 2.50 mol of barium chloride and excess aluminum sulfate? This is the balanced equation for the reaction: Al2(SO4)3+ 3BaCl2--> 3BaSO4+ 2AlCl3. BaCl2molar mass is 208...
Provide a structure for the following compound: EI mass spectrum: two molecular ions of about equal intensity at m/z = 180 and 182; IR: 1740 cm-1; 1H NMR: ? 1.30 (3H, t J = 7 Hz); ? 1.80 (3H, d, J = 7 Hz); ? 4.23 (2H, q, J = 7
a 5.00 g sample of aluminum pellets specific heat capacity 0.89 jc g and a 10.00 g sample of iron pellets specific
A balloon is put in a bell jar and the pressure is decreased from 6.50 atm to 2.00 atm. If the volume of the balloon was originally 1.5 L.
When silver tarnishes, silver metal reacts with sulfur compounds to form a gray deposit of Ag2S. If Ag reacts with S to form this compound, identify which element is being oxidized and which is being reduced. Explain how you know that this is true..
Electrons are ejected from sodium metal by any light that has a wavelength shorter than 544 nm. What is the kinetic energy of an electron (in J)
Based on the number of chiral centers in Morphine, determine the maximum number of stereoisomers that are theoretically possible
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