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Allison pushes on the crate with a 225 N horizontal force and Brooke pulls on the crate with a force of 173 N at 25 degrees above the horizontal. The crate accelerate to the right at 0.82 m/s^2.
a) draw a free body diagram for the crate. b) what is the mass of the crate? c) what is the weight of the crate?d) what is the normal force on the crate? e) when they encounter a rough patch on the floor, the crae begins moving at a constant velocity of 1.90m/s to the right. what is the coefficient of kinetic friction between and crate and the floor?
Concentrated ammonia is added to an aqueous solution of copper(II) sulfate. Initially, a white precipitate forms. As more ammonia is added, the precipitate dissolves and the solution becomes a deep bluish-purple
which is exothermic as written. What would be the effect on the equilibrium position of increasing the volume of the reaction container
lightning from thunderstorms strike the earth 100 times each second. 2400 deaths have been caused bylightning strikes
Select the compound in each of the following pairs that will be converted to the corresponding alkyl bromide more rapidly on being treated with hydrogen bromide. Explain the reason for your choice - 1-Butanol or 2-butanol
The entropy change for this process is given by ΔS = nR ln (vf/vi) = nR ln 2. Now suppose 1.00 mol of an ideal gas expands isothermally at 300 K against a vacuum from 10.0 L to 20.0 L. Since the expansion is against a vacuum, w = 0
What is the percent ionization of a 0.171 M solution of this acid?
Calculate the volume of 6.00 M NaOH that can be added to a buffer composed of 0.160 mol CH3CHOHCO2H and 0.179 mol CH3CHOHCO2- in 500 mL water before the buffer capacity is exceeded.
Calculate the wavelength (in meters, use the abbreviation, not the whole word) of an electron traveling at a speed of 806 m/s
The freezing point of pure benzene was measured as 5.49 °C. With the same benzene and the same equipment, the freezing point of a solution containing 6.60 g of an unknown compound in 140 g of benzene was found to be 2.35 °C.
Formation of precipitate, formation of a gas, acid-base reaction forming a weak electrolyte, acid-base reaction forming of a gas or redox. AgNO3(aq) + HCI(aq) A) Molecular equation: B) Complete ionic equation: C) Net ionic equation: D) Type of rea..
You have proven sulfanilamide is capable of forming a stable and selective crystal lattice. Draw additional molecules of sulfanilamide and hypothesize the intermolecular interactions that are most important for providing a stable and selective cry..
The chlorinator feed rate is 4.0 mg/L and the free chlorine residual is 1.5 mg/L. (a) What is the chlorine demand (mg/L)? (b) How many kg of chlorine must be fed to the plant on a daily basis?
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