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Why is the zeroth order maximum the same color as the source? For lines of a given order, are the red or violet lines on the screen closer to the zeroth order maximum?
A focal length f1 = 20 cm, lens 2 has f1 = -12 cm, and the lens separation is d = 7 cm. (a) What is the image distance i2 (including sign) for the image produced by lens 2?
A slide 23.9 mm high is to be projected so that its image fills a screen 1.84 m high. The slide-to-screen distance is 2.96 m. Determine the focal length of the projection lens.
A Ferris wheel with a radius of 14.0 m rotates at a constant rate, completing one revolution in 30.0s. What is the apparent weight of a 60.0-kg passenger when she is at the bottom of the wheel?
What is the minimum area (in square meters) of the top surface an ice slab 0.251 m thick floating on fresh water that will hold up a 1060 kg automobile?
The refractive index of the pane is n2 = 1.52. Find the amount (in mm) by which the emergent ray is displaced relative to the incident ray.
Write the decay reaction for each of the following processes: a decay of 232U and 234Pu, 92 94, ß- decay of 45Ca and 212Pb, and 20 82.
The focal length of the objective is 0.430 cm, and that of the eyepiece is 1.50 cm. Find the overall magnification of the microscope.
A solution is prepared by mixing 50.0 mL of 0.50 M Cu(NO3)2 with 50.0 mL of 0.50 M Co(NO3)2. Sodium hydroxide is added to the mixture. Which precipitates first?
30 g of carbon are burned in a closed container under conditions of low oxygen. 70 g of carbon oxide forms. How much oxygen does this meann the carbon combined with?
Calculates the molarity of a calcium carbonate standard solution that contains 0.2430 grams of calcium carbonate dissolved in a total of 250.0 mL.
How many metric tons of 4.5%-S coal would be needed to yield the H2SO4 required to produce a 1.7cm rainfall of pH 2.00 over a 100 km2 area?
The U.S. Environmental Protection Agency set a maximum contaminant level. If the water in your home contains 4 percent of the allowable MCL, what is the molarity of TCE in your home?
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?
373.10 mg of medicine per week must be delivered to person X. If the nursing staff administers medication every eight hours exactly, how much medicine should be delivered at each visit?
A goat is tethered at the vertex on the outside of a monument in the shape of a regular hexagon with sides of length 30 feet. If the goat is tied by a 30 feet chain, how much area can he graze?
How many grams of precipitate are formed if 0.27 grams of barium nitrate is mixed with 0.2 L of 0.8 M potassium carbonate?
If you shine a light beam through this sample, minimal light passes through ( assume no light passes through). What if your sample allows 50% of light to pass through? How many bacteria are in yo
In triangle ABC, the measure of angle ABC= 51 degrees and the altitude AH is congruent to median BM. What is the measure of angle MBC?
A sample of 2 g of nitrogen can be combined with 2.285714 g of oxygen to form nitric oxide gas (NO). What mass of oxygen would be required to convert the same sample of nitrogen to nitrogen dioxi
The area of a rectangle equals the length X width. The equation for the area of a rectangle with a length of 12 is A=12w . Write an ordered pair that is the solution to this equation. Show work. The
Its radius is multiplied by a factor of 4/5 (four over five). What is the new lateral surface area?
How to verify the amount of pure gold in an irregularly shaped object (e.g., a crown) by placing it in water. How much water should be displaced by a pure gold object having a mass of 1.59 kg?
Geometry An equilateral triangle is one in which all three sides are of equal length. If two vertices of an equilateral triangle are (0, 4) and (0, 0), find the third vertex. How many of these trian
Find the equation of a line that is perpendicular to -4x + 3y = 47 and contains the point (-5, -9). Please show all of your work and write your answer in slope-intercept form.