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A block of mass 35 kg is on a flat floor with a static friction coefficient of 0.36 and a kinetic friction coefficient of 0.29. A person attempts to slide the box from rest in a forward direction. Find the maximum frictional force experienced and the acceleration of the box once it is moving if: a) the person pushes horizontally with 120 N. b) the person pushes at an angle with a 25 N vertical component directed down and a 200 N horizontal component of the push directed forward. c) the person pulls with 120 N on a rope up angled 30° up from the horizontal.
Identify the compounds present in the mixture and determine the percent by mass of each in the original sample. 1 Identity and % (wt/wt)= 2 Identity and % (wt/wt)=
The operations manager of a large production plant would like to estimate the mean amount of time a worker takes to assemble a new electronic component. Assume that the standard deviation of this assembly time is 3.6 minutes.
Barium reacts with a polyatomic ion to form a compound with the general formula Ba3(X)2. What would be the most likely formula for the compound formed between sodium and the polyatomic ion X?
What will the height of a water barometer be at 1.5atm and 15C?
moles of an ideal gas at 300K are expanded isothermally from an initial P of 4 atm to a final P of 1 atm. Calculate q, w, DeltaU, DeltaH for the process.
Draw and explain in details for all organic products that would result when excess of cis-1,3 dimethylcyclohexane reacts with Br2 and Cl2 in the presence.
A 52.2 mg portion of tri-protonated arginine is disolved in 995.5ml of distilled ,deionized water. then 4.5mls of 0.15N NaOH is added . what is the pH of the resulting 1 litter solution
Calculate the OH- of each aqueous solution with the following H3O+ A baking soda 1.1 X 10-8 M B orange juice 2.1 X 10-4
Calculate the molar solubility of PbCl2 in a 0.20 M NaCl solution. The Ksp of PbCl2 = 1.7 x 10-5. Can any assumptions be made to simplify this calculation
assuming no energy is transferred to or from the surroundings, calculate the final temperature of the water after all the ice melts heat capacity(s) 37.7 jmolk
Suggest a mechanism for the decomposition of hydrogen peroxide using a MnO2 catalyst. Rate equation is rate = k [H2O2]
Balloons are still used to deploy sensors that monitor meteorological phenomena and the chemistry of the atmosphere. It is possible to investigate some of the technicalities of ballooning by using the perfect gas law
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