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Mathematics

What is the exact value of cos 105 degrees?

What is the exact value of cos 105 degrees?

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Chemistry

Chloric acid, HClO3, contains what percent hydrogen by mass?

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Physics

Three forces of magnitudes f1=4.0n, f2=6.0n, and f3=8.0n are applied to a block of mass m=2.0kg, initially at rest, at angles shown on the diagram. (figure 1) in this problem, you will determine the resultant (net) force by combining the three individual force vectors. all angles should be measured counterclockwise from the positive x axis (i.

e., all angles are positive). None

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Chemistry

A reactive element with a relatively high electronegativity would be expected to have a relatively Group of answer choices small negative electron affinity and a relatively low ionization energy. small negative electron affinity and a relatively high ionization energy. large negative electron affinity and a relatively low ionization energy. large negative electron affinity and a relatively high ionization energy.

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Social Studies

Round or oval candies filled with fruit preserves or cream and covered with chocolate are called?

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Chemistry

Ba(oh)2 is a strong electrolyte. determine the concentration of each of the individual ions in a 0.750 m ba(oh)2 solution.

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Biology

Assume that a drop in parasite abundance reflects an effective immune response by the host. explain the pattern you described in question 2.

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Physics

A periscope. is useful for viewing objects that cannot be seen directly. It can be used in submarines and when watching golf matches or parades from behind a crowd of people. Suppose the object is a distance p1 from the upper mirror and the centers of the two flat mirrors are separated by a distance h.

(a) What is the distance of the final image from the lower mirror? (Use any variable or symbol stated above as necessary.) d =___________ behind the lower mirror (b) What is its magnification? None

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History

What was one cause of the War of 1812?​

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Biology

Which one of the following statements about euchromatin is incorrect?a. It is most frequently found in the form of 30nm fibers. b. It is distributed throughout the nucleus. c. It is less densely packed than heterochromatin. d. It is condensed during M-phase. e. It is rarely transcribed

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Business

University of Florida football programs are printed 1 week prior to each home game. Attendance averages 75 comma 000 screaming and loyal Gators​ fans, of whom​ two-thirds usually buy the​ program, following a normal​ distribution, for ​$5 each. Unsold programs are sent to a recycling center that pays only 10 cents per program. The standard deviation is 10 comma 000 ​programs, and the cost to print each program is ​$2. Refer to the standard normal tableLOADING... for​ z-values.

(a) What is the cost of underestimating demand for each program? (b) What is the overage cost per program? (c) How many programs should be ordered per game? (d) What is the stockout risk for this order size? None

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Chemistry

Which of the following statements about the Diels-Alder reaction is true? Multiple Choice The diene can react only when it adopts the s-trans conformation. Electron-withdrawing substituents in the diene increase reaction rate. Electron-donating substituents in the dienophile increase the reaction rate. The stereochemistry of the dienophile is retained in the product.

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Mathematics

What is the lateral surface area of a square pyramid with side length 11.2 cm and slant height 20 cm?

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Physics

What is a non example of biosphere

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Physics

During takeoff, the sound intensity level of a jet engine is 170dB at a distance of 34 m. what's the sound intensity level at a distance of 1.0 km?

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Social Studies

1. This protects reporters from revealing their sources.

equal time doctrine fairness doctrine shield laws prior restraint 2. This prohibits obscene or harassing conversation on any telecommunications facility. FCC Telecommunications Act Telecommunications Commission First Amendment 3. This is one way the government controls press coverage about national security issues. through governmental review of stories through the use of prior restraint through FCC regulations by classifying information as secret None

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