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A ladder that is 3.0 m long is leaning against a wall at an angle of 66.0 o with respect to the ground. If the base of the ladder is moved 0.51 m away from the wall, how far will the top of the l
At temperatures below the Curie temperature, Tc, ferromagnetic materials have two crucial properties. Explain these properties in terms of nanoscopic processes.
The surface areas of two similar cylinders are 6πft2 and 54πft2. The volume of the smaller cyllinder is 2πft3. What is the volume in cubic feet of the larger cyllinder?
Write the standard for of the equation of the line with slope 1 and y-intercept 2.
The diagonal of a square is 24 feet. Jane wants to build a fence around the garden. In order to buy enough fencing, jane needs to find the perimeter of the garden.
An object is placed at a distance of 28 cm from a thin convex lens. The lens has a focal length of 9 cm. what are the values of the image distance and lateral magnification?
A small object is 10 cm to the left of a converging lens (f = +5 cm), and a second diverging lens (f = -3.3 cm) is 5.8 cm to the right of the first. Find the position and magnification of the fin
The measure of the exterior angle of a triangle is greater than or equal to the sum of the two measures of the two opposite interior angles.
Two sides of a triangle measure 12 and 20. The measure of the included angle is 40. Find the area of the triangle to the nearest tenth.
AN and CM are medians. A. If the area of triangle ABC is 48 units^2, what are the areas of triangles AMC and CNA? Explain.
Copper (II) sulfate dissolves in water to form a blue solution. What species are present in the solution, ie, what is actually swimming around in the solution? Write the formulas.
How many grams of Ag2CO3 will precipitate when excess (NH4)2CO3 solution is added to 77.0 mL of 0.532 M AgNO3 solution?
How many grams of O2 are needed to react with 25.8g of NH3? Part B: How many grams of N2 can be produced when 6.30g of O2 reacts?
Consider quadrilateral ABCD with A = (-3,4), B = (2,6), C = (2,-1), and D = (-3,-3). Find the area and perimeter of ABCD. Please show work.
Chlorine (Cl2) is a strong germicide used to disinfect drinking water and to kill microbes in swimming pools. If the product is Cl-, was the elemental chlorine oxidized or reduced?
If you construct a 12 faced polyhedron of all congruent rhombi, where at each vertex either three or four angles meet. What is the specific angle for the rombus to build this object? How is it found
Iron (III) oxide reacts with carbon to give iron and carbon monoxide. How many grams of C are required to react with 80.0g of Fe2O3?
If you have 1 gram of (-) ethyl lactate and purify it with an enantiomeric excess of 85% yields, wihout any loss of material. How many grams of the (+) enantiomer were separated?
A plot of land is a trapezoid whose bases have lengths 80m and 110m, and whose height is 50m. if a bag of seeds covers 50 square meters, how many bags are needed to cover this plot of land?
How many liters of 0.500 M HCl(aq) are needed to react completely with 0.100 mol of Pb(NO3)2(aq), forming a precipitate of PbCl2(s)?
If the amount of Hg in an industrial-waste pond is 0.39 micrograms (ug)/mL, how much Hg is present in (kg) if the pond has a surface area (m^2) and an average depth of 35 ft?
Given the following equation. What is the maximum mass of FeO3 that can be prepared when 360.0g of FeS2 are mixed with 47.5g of oxygen gas?
A water sample was found to contain [Ca2+]=35 mg/L and [Mg2+]=20 mg/L. Determine the water hardness in terms of mg/L CaCO3.and state whether it has low, medium or high hardness.
A bicyclist passes beneath it, traveling in a straight line at the constant speed of 10 m/sec. How fast is the distance between the bicyclist and the balloon increasing 2 seconds later?
How could you convert butanenitrile into the following compounds? Write each step showing the reagents needed. (b) Butylamine and (c) 2-Methyl-3-hexanone.