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BONUS
Biology \(-\) Short Answer | Identify all of the following three statements that are true of lancelets:
They possess a post-anal tail; They possess pharyngeal [fair-in-JEE-ul] slits; Their musculature
derives from mesoderm. | ALL |
TOSS-UP
Earth and Space \(-\) Multiple Choice | Widmanstatten [WTHD-mahn-STAH-ten] patterns are most commonly found in which of the following objects?
W) Stony meteorites
X) Iron meteorites
Y) Moon rocks
Z) Carbonaceous [car-bon-AY-shus] chondrites [KON-drytes] | X) IRON METEORITES |
BONUS
Earth and Space \(-\) Multiple Choice | Lobate scarps on the surface of Mercury are a result of which of the following processes?
W) Cooling
X) Plate tectonics [tek-TAWN-iks]
Y) Volcanism
Z) Land tides | W) COOLING |
TOSS-UP
Physics - Short Answer | To the nearest whole number of joules, how much work is done by a 4-newton-meter torque applied over one full revolution to a 3-kilogram wheel with radius 7 meters? | 25 |
TOSS-UP
Energy - Short Answer | Researchers at SLAC [slack] lab are operating and collecting data from the orbiting Fermi [FUR-mee] telescope, which captures light from what region of the electromagnetic spectrum that is useful for studying Type II supernovae [SUper-noh-vee] and pulsars? | GAMMA RAYS |
BONUS
Energy - Multiple Choice | Scientists at Ames Lab have recently released a study of the various parameters of superconductors, including the superconducting transition temperature and the London Penetration Depth. The London Penetration Depth best measures the penetration of which of the following quantities?
W) Current
X) External magnetic field
Y) Alternating current
Z) An external electric field | X) EXTERNAL MAGNETIC FIELD |
TOSS-UP
Math - Short Answer | What is 69 times 13? | 897 |
TOSS-UP
Physics - Short Answer | An astronaut, who is 60 kilograms and initially at rest, is approached by a
crate of supplies that is moving at 4 meters per second. When the crate is close, the astronaut pushes against it, accelerating him to 2 meters per second and slowing the crate down to 2.5 meters per second. What is the mass, in kilograms, of the crate? | 80 |
TOSS-UP
Earth and Space \(-\) Multiple Choice | Tephrochronology [TEF-roh-krah-NAWL-ah-jee] deals with age-dating what type of material?
W) Carbonate shells
X) Dead organisms
Y) Volcanic ash
Z) Ice-rafted debris | Y) VOLCANIC ASH |
BONUS
Earth and Space \(-\) Short Answer | Identify all of the following three statements that are true of fossil fuels: Good reservoir rocks have high permeability; Good cap rocks have low permeability; Natural gas tends to form at shallower depths than oil. | 1 AND 2 |
TOSS-UP
Chemistry \(-\) Multiple Choice | Methanol has a more negative standard change in enthalpy [EN-thul-peel] of formation than methane. Which of the following is true regarding their relative chemical stabilities?
W) Methanol is more stable than methane
X) Methanol is less stable than methane
Y) Because both are composed of the same atoms, they are equally stable
Z) Their stabilities cannot be compared with standard enthalpy [EN-thul-peel] changes | Z) THEIR STABILITIES CANNOT BE COMPARED WITH STANDARD ENTHALPY CHANGES |
BONUS
Chemistry \(-\) Multiple Choice | Acetone cyanohydrin [sigh-ANN-oh-HIGH-drin] is formed when a cyanide ion reacts with acetone. What atom is the electrophile in this reaction?
W) Nitrogen on the cyanide ion
X) Carbon at the 2 position on acetone
Y) Carbon at the 1 position on acetone
Z) Oxygen on acetone | X) CARBON AT THE 2 POSITION ON ACETONE |
TOSS-UP
Energy - Multiple Choice | De novo phasing is a technique that structural biologists at SLAC [slack] use to gather information about a new protein's 3D shape. This technique involves the replacement of a single atom inside the protein with a traditionally non-proteinogenic [pro-teen-oh-JEN-ik] atom with similar chemical behavior. In one example, the researchers replaced a sulfur atom with what?
W) Nitrogen
X) Selenium
Y) Phosphorus
Z) Arsenic | X) SELENIUM |
BONUS
Energy - Multiple Choice | Los Alamos National Lab scientists are studying how microbes in the soil can slow down the spread of what long-lived radioisotope that is readily absorbed in the thyroid?
W) Strontium-90 [STRAWNCH-ee-um-90]
X) Iodine-131
Y) Cesium-137 [SEEZ-ee-um-one-thirty-seven]
Z) Iodine-129 | Z) IODINE-129 |
TOSS-UP
Biology - Multiple Choice | Which of the following forms of nitrogenous [nye-TRAW-jen-us] waste excretion is most energetically costly to produce?
W) Ammonia
X) Urea
Y) Ammonium
Z) Uric acid | Z) URIC ACID |
BONUS
Biology - Multiple Choice | During Western blotting, a blocking solution is often prepared. What is the primary function of the blocking solution?
W) Conditioning of the PVDF membrane
X) Limiting non-specific binding of antibodies
Y) Preserving antibody-protein interactions
Z) Quenching protein denaturation | X) LIMITING NON-SPECIFIC BINDING OF ANTIBODIES |
TOSS-UP
Earth and Space - Multiple Choice | What class of meteorites is composed of undifferentiated, spherical particles that are believed to contain primitive material from which rocky planets formed?
W) Achondrites [ay-KAWN-dries]
X) Chondrites [KON-drite]
Y) Iron meteorites
Z) Pallasites | X) CHONDRITES |
TOSS-UP
Math - Short Answer | If the graph of \(y\) equals open parenthesis\(x+4\) close parenthesis squared\(+3\) is translated 2 units to the right and 4 units down, what are the coordinates of the vertex of the image? | (-2, -1) (ACCEPT: \(x=-2\) AND \(y=-1\)) |
TOSS-UP
Biology - Multiple Choice | What type of phagocytic cell can primarily be found under mucosal [myoo-KOH-sul] surfaces and plays a primary role in responding to multicellular pathogens?
W) Neutrophphils [NEW-toth-fill]
X) Eosinophilis [ee-oh-SIN-oh-filz]
Y) Dendritic cells [den-DRIH-dik]
Z) Macrophages [MACRO-fay-jiz] | X) EOSINOPHILS |
BONUS
Biology - Short Answer | A scientist is separating proteins using size-exclusion chromatography [crow-mah-TAW-grah-fee]. Identify the relative order of elution from earliest to latest of the following proteins from the column: Titin; Myoglobin [MY-oh-glow-bin]; Hemoglobin; Cytochrome [SIGH-tow-krome] c. | 1, 3, 2, 4 |
TOSS-UP
Chemistry - Multiple Choice | Which of the following functional groups can be found in sucrose?
W) Alcohol
X) Amine
Y) Aminal
Z) Carboxyl | W) ALCOHOL |
BONUS
Chemistry - Multiple Choice | Which of the following techniques would most unambiguously determine the structure of a compound that contains stereocenters?
W) Mass spectrometry [spek-TRAW-metry]
X) X-ray crystallography [crystal-AW-graphy]
Y) 1D NMR spectroscopy [spek-TRAW-scuh-pee]
Z) Atomic absorption spectroscopy | X) X-RAY CRYSTALLOGRAPHY |
TOSS-UP
Math - Short Answer | What is the determinant of the 2-by-2 matrix with first row \(-3,-5\) and second row \(8\), \(-2\)? | 46 |
TOSS-UP
Biology - Short Answer | Fairy rings are associated with what division of fungi? | BASIDIOMYCOTA (ACCEPT: BASIDIOMYCETES) |
TOSS-UP
Physics - Short Answer | A 9-volt battery with internal resistance of 1 ohm is connected to a lightbulb. If the potential drop across the lightbulb is 6 volts, then in watts, how much power is dissipated by the lightbulb? | 18 |
BONUS
Physics - Short Answer | Water flows through a horizontally-level pipe at 4 meters per second, until it encounters a section where its static pressure decreases by 10 kilopascals. To the nearest whole number of meters per second, what is its new flow speed? | 6 |
TOSS-UP
Earth and Space - Short Answer | Identify all of the following three rocks that would be classified as
aphanitic [AFF-in-it-ik]: Andesite [ANN-deh-sitel]; Basalt [bah-SALT]; Diorite. | 1 AND 2 |
BONUS
Earth and Space - Short Answer | Place the following three rock types in increasing order of distance
from shore at the time of deposition in a typical sedimentary sequence: Shale; Limestone;
Sandstone. | 3, 1, 2 |
TOSS-UP
Chemistry - Short Answer | Aspartame is an artificial sweetener composed of amino acids linked by what type of chemical bond? | AMIDE (ACCEPT: PEPTIDE) |
BONUS
Chemistry - Short Answer | Identify all of the following three chemical moieties that are capable of having cis [sis] -trans isomerism [eye-SAW-mer-izm]: Tetrahedral [letrah-HEE-drul] complex; Alkene; Square planar [PLAY-nar] complex. | 2 AND 3 |
TOSS-UP
Earth and Space \(-\) Multiple Choice | Which of the following ocean currents does NOT flow from higher latitudes toward the equator?
W) The California Current
X) The Peru Current
Y) The Brazil Current
Z) The Benguela [ben-GWAY-la] Current | Y) THE BRAZIL CURRENT |
BONUS
Earth and Space \(-\) Multiple Choice | Which of the following events occurred in the Late Mississippi?
W) Breakup of Rodinia
X) Collision of Gondwana with Laurasia
Y) Collision of Laurentia with Baltic
Z) Breakup of Pangaea | X) COLLISION OF GONDWANA WITH LAURASIA |
TOSS-UP
Math \(-\) Short Answer | What are the \(x\)-coordinates of the intersections of the graphs of the equations \(y=9x^{2}+3\) and \(y=-27x+3\)? | 0 AND -3 |
BONUS
Math \(-\) Short Answer | What is the cube of the complex number \(3+5i\)? | \(-198+10i\) |
TOSS-UP
Chemistry - Multiple Choice | A student wishes to convert an aldehyde to a secondary alcohol. Which of the following reagents would be most useful?
W) Alkyl [AL-keel] Grignard [GRIN-yard] reagent
X) Lithium aluminum hydride
Y) Sodium borohydride
Z) Sodium hydride | W) ALKYL GRIGNARD REAGENT |
BONUS
Chemistry - Short Answer | Andrew synthesizes a compound that consists of a benzene ring with an alcohol group in the one position and a primary amine in the four position. Identify all of the following three names that unambiguously represent the structure of this compound: P-aminophenol;
4-aminophenol; 4-hydroxyaniline. | ALL |
TOSS-UP
Physics - Multiple Choice | Planck resolved the ultraviolet catastrophe for black bodies by postulating the quantization of photon energies to derive an expression showing that the modal energies obey which of the following statistical distributions?
W) Fermi-Dirac
X) Maxwell-Boltzmann
Y) Bose-Einstein
Z) Gaussian | Y) BOSE-EINSTEIN |
BONUS
Physics - Short Answer | A spinning dancer draws her arms inwards until she rotates at 3 times her original velocity. In terms of her original kinetic energy \(E\), how much energy did this maneuver require? | \(2E\) |
TOSS-UP
Biology - Short Answer | Identify all of the following four phyla [FYE-lah] that exhibit radial symmetry: Porifera [poor-IH-fer-ah]; Cnidaria [nye-DARE-ee-ah]; Mollusca [null-US-kah]; Echinodermata [eh-kye-noh-der-MAH-tah]. | 2, 4 |
BONUS
Biology - Short Answer | In humans, circadian [sir-KAY-dee-an] rhythms are controlled by a specific group of neurons in the hypothalamus [high-poh-THAL-ah-mus] called what? | SCN (ACCEPT: SUPRACTIASMATIC NUCLEUS) |
TOSS-UP
Energy - Multiple Choice | Scientists at Lawrence Berkeley National Lab recently captured images of a Type one-A supernova in a galaxy four billion light-years away that appeared 50 times brighter than normal and in four different places in the sky. Which of the following did the scientists discover?
W) A Type-one-A supernova with a progenitor that was 20-50 times more massive than normal
X) An anomalous type-two supernova with a light curve resembling type Ia
Y) A light echo of a type-one-A supernova
Z) A type-one-A supernova whose image was strongly gravitationally lensed | Z) A TYPE-ONE-A SUPERNOVA WHOSE IMAGE WAS STRONGLY GRAVITIGNALLY LENSED |
BONUS
Energy - Multiple Choice | One of the most promising generation IV nuclear reactor designs involves the use of supercritical water as the coolant. What is the main reason to use supercritical water?
W) It has a higher neutron absorption cross section
X) It has a lower neutron absorption cross section
Y) It is fissile
Z) It allows for a higher thermal efficiency | Z) IT ALLOWS FOR A HIGHER THERMAL EFFICIENCY |
TOSS-UP
Earth and Space \(-\) Multiple Choice | Which of the following drainage patterns would likely be visible on jointed, rocky terrain?
W) Dendritic [den-DRIH-dik]
X) Trellis
Y) Radial
Z) Rectangular | Z) RECTANGULAR |
TOSS-UP
Biology \(-\) Multiple Choice | A patient is demonstrating loss in bone density. Which of the following hormones would be most useful in treating this symptom?
W) Parathyroid hormone
X) Vasopressin
Y) Calcitonin [kal-sinh-TOE-nin]
Z) Mineralocorticoid [mineralo-CORE-deh-KOYD] | Y) CALCITONIN |
TOSS-UP
Energy - Multiple Choice | DOE scientists are using the Advanced Light Source to study atmospheric reentry heat shields, including PICA [IPEE-kahl], the type currently used by NASA and SpaceX. Which of the following best describes PICA?
W) A silicone-based heating pad
X) A highly-thermally-conductive epoxy
Y) A carbon fiber that slowly ablates
Z) Titanium shingles with heat sinks | Y) A CARBON FIBER THAT SLOWLY ABLATES |
TOSS-UP
Math - Short Answer | What is the product of the three different prime factors of 315? | 105 |
TOSS-UP
Physics - Short Answer | In terms of the elementary charge \(e\), what is the electric charge of an up quark? | POSITIVE (2/3)\(e\) (ACCEPT: (2/3)\(e\), 2\(e\)/3) |
BONUS
Physics - Short Answer | An excess charge is distributed over the surface of a solid metal sphere that has a radius of one meter. Identify all of the following three distances from the center of the sphere at which the electrical potential relative to infinity is maximized: 50 centimeters; 100 centimeters; 150 centimeters. | 1 AND 2 |
TOSS-UP
Chemistry - Multiple Choice | The precipitation reaction caused by the addition of potassium chloride to aqueous [AY-kwee-us] silver nitrate is an example of which of the following types of reactions?
W) Metathesis [meh-TATH-uh-sis] X) Decomposition Y) Synthesis Z) Redox | W) METATHESIS |
BONUS
Chemistry - Multiple Choice | Copper (II) hydroxide is insoluble in water. However, upon the addition of excess ammonia, it dissolves and changes to a deep blue color. Which of the following statements best explains this observation?
W) The rise in pH solubilized the copper hydroxide
X) The drop in pH solubilized the copper hydroxide
Y) The copper reacted with ammonia, forming a soluble species
Z) The ammonia neutralized the hydroxide, releasing soluble copper (II) | Y) THE COPPER REACTED WITH AMMONIA, FORMING A SOLUBLE SPECIES13) Biology - Short Answer The five-prime cap added to mRNA is a modified version of what nucleotide base? |
TOSS-UP
Energy - Multiple Choice | Lithium-ion batteries are generally built in the discharged state, then recharged after construction. Which of the following best explains why this is done?
W) The materials in the discharged state can be exposed to the atmosphere safely
X) In the charged state, the raw materials pose a risk of dendrite formation
Y) Lithium dendrites cannot form in the discharged state
Z) Lithiated manganese materials are particularly unstable in the presence of humidity | W) THE MATERIALS IN THE DISCHARGED STATE CAN BE EXPOSED TO THE ATMOSPHERE SAFELY |
TOSS-UP
Chemistry - Multiple Choice | Which of the following substances is more soluble in toluene than in
water?
W) Carbon tetrachloride
X) Sodium chloride
Y) Acetic acid
Z) Sodium methoxide | W) CARBON TETRACHLORIDE |
BONUS
Physics - Short Answer | Identify all of the following three quantities that are dimensionless:
Tensile [TEN-sile] stress; Tensile strain; Young's Modulus. | 2 |
TOSS-UP
Math - Short Answer | How many terms does the binomial expansion of open parenthesis \(8x^{3}+5y^{2}\) close parenthesis to \(18^{\rm th}\) power contain? | 19 |
BONUS
Math - Short Answer | What are the coordinates of the image of the point (-1, when it is rotated about the point (3, by 90 degrees counterclockwise? | (1, -2) (ACCEPT: \(x=1\) AND \(y=-2\)) |
TOSS-UP
Biology - Short Answer | What is the name of the jelly-like fluid that fills the human eye? | VITREOUS HUMOR (ACCEPT: VITREOUS BODY) |
BONUS
Biology - Short Answer | Identify all of the following three vitamins that are considered fat-soluble:
Biotin; Cobalamin [koh-BALL-ah-min]; Niacin. | NONE |
TOSS-UP
Chemistry - Short Answer | Identify all of the following three statements that are true regarding the
dentity of ligands [LIH-gundz]: Bromine [BROH-meen] is a monodentate ligand;
Diethylenetriamine [dye-ethileen-tri-ah-meen] is a bidentate ligand; EDTA is a quatradentate [kwah-trah-DEN-tate] ligand. | 1 |
BONUS
Chemistry - Short Answer | Identify all of the following three molecules that have the chemical
formula C\({}{4}\)H\({}{8}\)O: Acetone; Butanone; Butyraldehyde. | 2 AND 3 |
TOSS-UP
Earth and Space \(-\) Short Answer | What spectral class of stars possesses the strongest Balmer lines? | A (ACCEPT: A-ZERO) |
TOSS-UP
Chemistry - Multiple Choice | A student is holding two balloons, one containing one mole of hydrogen gas and the other containing one mole of helium gas. What is the ratio of the volume of the helium balloon to that of the hydrogen balloon?
W) 1/2
X) 1
Y) 2
Z) 4 | X) 1 |
BONUS
Chemistry - Short Answer | Rank the following three elements in increasing order of atomic radius:
Calcium; Chlorine; Magnesium. | 2, 3, 1 |
TOSS-UP
Physics - Short Answer | The radioactive decay of magnesium-23 to sodium-23 is mediated by which fundamental force? | WEAK FORCE (ACCEPT: WEAK NUCLEAR FORCE) |
BONUS
Physics - Short Answer | A block rests on an inclined plane angled at 30 degrees from the horizontal.
What is the ratio of the normal force to the force down the surface of the plane? | \(\forall\)3 (ACCEPT: \(\forall\)3 TO 1) |
TOSS-UP
Energy - Short Answer | Researchers at Lawrence Berkeley National Lab are studying a tunable, hypersensitive form of MRI that could present a breakthrough in cancer diagnostics. Typically, MRI machines use radio frequency pulses to measure the distribution of what element? | HYDROGEN |
BONUS
Energy - Short Answer | Identify all of the following three fuels that could be used in a fuel cell:
Methane; Hydrogen; Carbon monoxide. | ALL |
TOSS-UP
Biology - Short Answer | Glucagon [GLUE-kah-gon] is primarily manufactured in the alpha cells of what human organ? | PANCREAS |
BONUS
Biology - Short Answer | A molecular biologist wishes to move a section of DNA from one plasmid to another. After cutting the first plasmid with restriction enzymes and isolating the band of DNA of interest, she mixes together the second, already-cleaved plasmid and the DNA of interest. What enzyme must she add to finish incorporating the gene into the plasmid? | LIGASE (ACCEPT: DNA LIGASE, RECOMBINASE) |
TOSS-UP
Math - Short Answer | In the expansion of the cube of \(a+2b\), what is the coefficient of the \(ab^{2}\) term? | 12 |
TOSS-UP
Earth and Space - Short Answer | What technique is employed by astronomers to study the ways in which matter interacts with or emits electromagnetic radiation? | SPECTROSCOPY |
TOSS-UP
Energy - Short Answer | The Deep Underground Neutrino [new-TREE-no] Experiment is an effort at Fermilab to send neutrinos between two points separated by a large distance to give them time to undergo what unique behavior of neutrinos? | OSCILLATION |
BONUS
Energy - Multiple Choice | Which of the following is the most important difference between fast nuclear reactors and thermal nuclear reactors?
W) They use different fuel configurations
X) Unlike thermal reactors, fast reactors do not use a moderator
Y) Thermal reactors have a higher neutron flux than fast reactors
Z) Thermal reactors run at higher temperatures than fast reactors | X) UNLIKE THERMAL REACTORS, FAST REACTORS DO NOT USE A MODERATOR |
TOSS-UP
Math - Short Answer | What is the arc length of a sector of a circle with radius 2 and central angle pi over three? | 2\(\pi\)/3 (ACCEPT: (2/3)\(\pi\)) |
BONUS
Math - Short Answer | A student has a paper cup in the shape of a right circular cone, with a height of 5 inches and an opening diameter of 3 inches. How many of these paper cups of water will it take the student to fill a cylindrical container of diameter 3 inches and height 10 inches? | 6 |
TOSS-UP
Earth and Space \(-\) Short Answer | What is the term for the point of origin within the Earth of seismic waves in an earthquake? | FOCUS (ACCEPT: HYPOCENTER) |
BONUS
Earth and Space \(-\) Short Answer | What name is given to the boundary between the Earth's crust and mantle where P-wave velocity jumps from approximately 6 kilometers per second to approximately 8 kilometers per second? | MOHO (ACCEPT: MOHORVICIC DISCONTINUITY) |
TOSS-UP
Biology \(-\) Multiple Choice | Beadle and Tatum's one gene-one enzyme hypothesis was formed from the results of their investigation of which of the following biological processes?
W) Operon inhibition
X) Amino acid biosynthesis
Y) DNA replication
Z) Limited proteolysis [pro-tee-AW-lih-sis] | X) AMINO ACID BIOSYNTHESIS |
BONUS
Biology \(-\) Short Answer | Identify all of the following three plant nutrients that are required for the light reactions of photosynthesis to occur: Iron; Nickel; Molybdenum [muh-LIB-den-um]. | 1 |
TOSS-UP
Math - Short Answer | If \(f\) of \(x\) is equal to \(5x^{2}-6x+2\), what is \(f\) of 3? | 29 |
BONUS
Math - Short Answer | What is the limit as \(x\) approaches 0 of the fraction with numerator\(x+\mbox{sine}\ x\) and denominator\(e\) to the \(x\) power minus 1? | 2 |
TOSS-UP
Physics - Short Answer | What physical quantity is defined as the rate of change of a particle's energy with respect to time? | POWER |
BONUS
Physics - Short Answer | A linear spring is hung from the ceiling. When a 1-kilogram block is hung from the spring, the spring's length increases by 2 meters. If another 1-kilogram block is hung from 8 similar springs connected in parallel, then, in meters, what will be the change in length of each of the springs? | 0.25 (ACCEPT: \(\forall\)a) |
TOSS-UP
Energy \(-\) Short Answer | The first useful nuclear-generated electricity was produced in Idaho in 1951. The nuclear reactor was designed and built by what DOE national laboratory? | ARGONNE NATIONAL LAB (ACCEPT: ARGONNE) |
BONUS
Energy \(-\) Short Answer | The electrodes in hydrogen fuel cells are generally composed of what catalytically-active element? | PLATINUM |
TOSS-UP
Earth and Space \(-\) Multiple Choice | Which of the following minerals would be found in least abundance in a typical gabbro [gab-roh]?
W) Muscovite
X) Plagioclase [PLAY-jee-oh-klaze]
Y) Augite [AW-jite]
Z) Hornblende | W) MUSCOVITE |
BONUS
Earth and Space \(-\) Short Answer | Identify all of the following three features that are associated with karst landscapes. Disappearing streams; Stalagmites [stah-LAG-mites]; Sinkholes. | ALL17) Chemistry - Short Answer What is the hybridization [HIGH-brih-dye-ZAY-shun] of the carbon atoms in polyethylene? |
TOSS-UP
Biology - Short Answer | Sand dollars belong to what phylum [FYE-lum]? | ECHINODERMATA |
TOSS-UP
Math - Short Answer | What is the slope of the line that passes through the points (6, and (2, ? | 1/4 (ACCEPT: 0.25) |
TOSS-UP
Physics - Multiple Choice | Which of the following length scales best describes the spatial distortion resolution of the Laser Interferometer Gravitational-wave Observatory?
W) Length of the interferometer arm
X) Wavelength of the helium-neon laser
Y) Radius of a silver atom
Z) Thousandth of a proton diameter | Z) Thousandth of a proton diameter |
TOSS-UP
Earth and Space \(-\) Short Answer | What is the brightest star in the constellation Orion? | RIGEL |
TOSS-UP
Biology \(-\) Short Answer | In order for tropomyosin [troh-poh-MY-oh-sin] to be removed from the myosin-binding sites on actin, troponin [TROH-poh-min] must bind to what second messenger? | CALCIUM (ACCEPT: CALCIUM TWO PLUS) |
TOSS-UP
Chemistry - Short Answer | According to VSEPR theory, what is the electron-pair geometry of the central atom in the compound iodine trichloride? | TRIGONAL BIPYRAMIDAL |
TOSS-UP
Energy - Multiple Choice | Two years after carbon dioxide was sequestered by the Pacific Northwest National Lab near Wallula, Washington, the material was converted into mineral substances resembling what type of sedimentary rock?
W) Rock gypsum
X) Limestone
Y) Coal
Z) Rock salt | X) LIMESTONE |
TOSS-UP
Earth and Space - Short Answer | What star has the lowest apparent magnitude as observed from Earth? | THE SUN (ACCEPT: SOL) |
TOSS-UP
Biology - Short Answer | Before amino acids can be used in translation, the free amino acid must be bonded to what class of molecules? | tRNA |
TOSS-UP
Chemistry - Multiple Choice | Which of the following terms best describes the relationship between 1-butanol [one-BYOO-tan-all] and 4-butanol?
W) Structural isomers
X) Same compound
Y) Diastereomers [dye-ah-STARE-ee-oh-murz]
Z) Enantiomers [en-AN-tee-oh-mirs] | X) SAME COMPOUND |
TOSS-UP
Physics - Short Answer | A 1,000-kilogram block of density 800 kilograms per cubic meter is placed in a fluid of density 1,000 kilograms per cubic meter. What percentage of the block's total volume floats above the surface of the fluid? | 20 |
BONUS
Physics - Multiple Choice | A lightning bolt strikes a power station, transmitting a current of 30,000 amps for 100 microseconds into it, which is currently charging a 2,000-milliampere-hour battery. Assuming that the charge from the lightning bolt is perfectly transmitted into the battery, which of the following percentages is closest to the percentage of the battery that it would charge?
W) Less than 1
X) 25
Y) 50
Z) 75 | W) LESS THAN 1 |
TOSS-UP
Math - Short Answer | What value of \(x\) minimizes the function \(f\) of \(x\) equals \(x^{2}-6x+2\)? | 3 |
BONUS
Math - Multiple Choice If \(f(x)=\) the square root of open parenthesis \(x+4\) close parenthesis and \(g(x)=\) the square root of open parenthesis \(x-4\) close parenthesis, what is the domain of the function \(f(x)\) divided by \(g(x)\)?
W) All real numbers greater than 4
X) All real numbers greater than or equal to 4
Y) All real numbers greater than or equal to \(-4\)
Z) All real numbers between \(-4\) and 4
Answer: W) All real numbers greater than Biology - Short Answer | Under limited nutrient conditions Bacillus [bah-SIL-us] subtilis [SUB-dil-iss] initiates a morphological change, notably documented by Robert Koch [coke], that results in the formation of what structure? | ENDOSPORE (ACCEPT: SPORE) |