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A baseball is thrown from the top of a building with initial velocity of 30 m/s at a 24 degree angle with the horizontal direction. If the top of the building is 30 m above the ground,
a) How long does it take the ball to reach its maximum height?
b) How fast will the ball be moving just before it strikes the ground?
How long will it take to deposit 0.00470 moles of gold by electrolysis of KAuCl4 (aq) using a current of 0.214 amperes? Which metal would be suitable to provide cathodic protection from corrosion for an iron bridge?
Consider H2, D2, and H20, treated as ideal gases at pressures of 1 atm and temperatures of 293.2 K.
State the box diagram for Cu(I). Assume whether aqueous solutions of Cu(I) will be paramagnetic or diamagnetic
When 2.25 g of sodium hydroxide (NaOH) was dissolved in 150.00 g of water a value of 11.00oC was obtained for ?T. Calculate the molarity of the sodium hydroxide solution. _______ Calculate the value (calories) for the heat of solution of 2.25 g of..
Problem- What is the solubility of oxygen in lake water at 28celsius?? Assume that the pKH of oxygen at this temperature is twice that of CO2. Give your answer in mg/L.
Describe the process that ice on Mount Everest goes through when being heated from 10 degrees Fahrenheit to 305 degrees Kelvin.
Using an unmanned rocket to visit the space station requires 85.2 trillion BTU of energy. The best fuel for the mission will have the highest ratio of energy to volume.
Given the equation: 2Cr(s) + 3H2O(g) = Cr2O3(s) + 3H2(g) How many moles of chromium metal are required to react with 3.17 moles of water
A solution is prepared by dissolving 20.0 g of K2HPO4 and 25.0 g of KH2PO4 in enough water to produce 1.0 L of solution. What is the pH of this buffer
A sample of apple juice has a hydrogen ion concentration of 1.69 x 10^-6 M. Determine the pH of this sample
What pressure will the evolved carbon dioxide produce when 184.5g of calcium carbonate decomposes in a 20.00L container at 22.4 deg celsius?
you accidentally mixed up 3 beakers of solutions. one iswater one is pure ethanol one is pure hcl.how would you not
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