An airplane is heading due south at a speed of 485 km/h. A wind begins blowing from the southwest at a speed of 100 km/h (average). What is the velocity (magnitude and direction) of the plane relative to the ground?
slaked lime (magnesium hydroxide) can be added to aluminum sulfate solution in a water treatment plant to clarify the water. fine particles in the water stick to the precipitate that is produced. a) write the balanced equation to represent the reaction between the aqueous reactants. include states of matter. b) what is the name of […]
In a controlled greenhouse at 30.0ºC and 1.0 atm, a crop of seedling tomato plants was found to consume 380 L of carbon dioxide gas during photosynthesis. Assuming 100% yield, what mass of glucose (molar mass = 180 g/mol) was produced for the growing plants? 6CO2(g) + 6H2O(l) → C6H12O6(s) + 6O2(g)
RESEARCH PAPER ON LABORATORY PROCEDURE/TECHNIQUE
A 1000 kg aircraft going 25 m/s collides with a 1500 kg aircraft that is parked and they stick together after the collision and are going 10 m/s after the collision. If they skid for 17.9seconds before stopping, how far did they skid? Hint: Are the aircraft moving at a constant velocity after the collision or do they experience an acceleration?
discuss how some microbes that produce infections in humans have become resistant to antibiotics. Find one example of microbial resistance (within the last five years) that has produced illness in humans. Please make sure to cite your source (books, magazines, internet, etc)!
The vector position of a 3.1 g particle moving in the xy plane varies in time according to r1 = (3i + 3j)t+2jt^2 where t is in seconds and is in centimeters. At the same time, the vector position of a 5.35 g particle varies as r2 = 3i − 2it^2 − 6jt.Determine the vector […]
12.0 moles of gas are in a 3.00 L tank at 22.9 C. Calculate the difference in pressure between methane and an ideal gas under these conditions. The van der Waals constants for methane are a = 2.300 L^2*atm/mol2 and b = 0.0430 L/mol.
A man pushes a lawnmower for 12.1 m along a handle that makes a 28.2° angle with the ground. He pushes with a force of 42.7 N while the force of friction between the lawnmower and the ground is 12.7 N.
A total of 2.00 of a compound is allowed to react in a foam coffee cup that contains 176 of water. The reaction caused the temperature of the water to rise from 21.0 to 24.7 . What is the enthalpy of this reaction? Assume that no heat is lost to the surroundings or to the […]
