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Physics

For a cosine function with amplitude A=0.75 and period T=10, what is y(4)?

Cynthia Baker

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How much energy does the electron have initially in the n=4 excited state?what is the change in energy if the electron from part a now drops to the ground state?

Donald Ward

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Help please! it is winter where jenna lives. Its been snowing all day, but now the snow has changed to sleete and then to freezing rain what ia happening to cause these changes?

Theresa Perry

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It is the same distance from second base to first base, and from second base to third base. The angle formed by first base, second base, and home plate has the same measure as the angle formed by third base, second base, and home plate. What can you conclude about the distance from first base to home plate, and from home plate to third base? Explain. ...?

Kristi Hammond

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Which of the following monitors both vertical and horizontal movements along a fault? a. seismograph b. GPS satellite system c. Richter scale d. Mercalli Scale

Carlton Burgess

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When Earth receives energy from the Sun, ____. a. some energy is reflected back into space b. some is absorbed by the atmosphere c. some is absorbed by land and water on Earth's surface d. all of the above

Jeremy Wood

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Ba-11 when passing through a lock, which light means "approach the lock under full control?"

Brandon Scott

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Study the following table. Which object will float? A. Object A B. Object B C. Object C D. Object D Download png

Caroline Campbell

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Magma that cools and crystallizes on Earth's surface forms A. quartz. B. marble. C. intrusive rocks. D. extrusive rocks.

Jeffrey Rodriguez

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Leon Kass argues that the primary responsibility of physicians is to

James Washington

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Explain why it is not possible to change hereditary conditions.

Justin Parker

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How are energy and mass connected during the formation of an atom? Energy is absorbed, so the mass is increased. Energy is released, so the mass is increased. Energy is absorbed, so the mass is reduced. Energy is released, so the mass is reduced.

Deborah Edwards

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The weight of passengers on a roller coaster increases by 60 % as the car goes through a dip with a 37 m radius of curvature. what is the car's speed at the bottom of the dip?

Whitney Matthews

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What type of telescope is shown in Figure 24-2

Blair Lewis

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Two meteoroids are heading for earth. their speeds as they cross the moon's orbit are 1.0 km/s . part a the first meteoroid is heading straight for earth. what is its speed of impact?

Mindee Nelson

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In which of these samples do the molecules most likely have the least kinetic energy? solid iron at 25°C molten iron at 1600°C solid iron at 98°C iron vapor at 2900°C

Bethany Evans

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If the organ pipe is cut in half, what is the new fundamental frequency? if the organ pipe is cut in half, what is the new fundamental frequency? 4f0 2f0 f0 f0/2 f0/4

Jeffrey Rodriguez

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Which of the following energy sources is expected to have the highest rate of consumption in 2030? a. coal b. natural gas c. nuclear d. renewable energy

Cynthia Baker

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A skydiver of mass m jumps from a hot air balloon and falls a distance d before reaching a terminal velocity of magnitude v. assume that the magnitude of the acceleration due to gravity is g. part a what is the work wd done on the skydiver, over the distance d, by the drag force of the air? express the work in terms of d, v, m, and the magnitude of the acceleration due to gravity g.

Craig Stewart

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Which value is equivalent to 178 centimeters? 1.78 millimeters 17.8 millimeters 1.78 meters 1.78 × 10-2 micrometers 1.78 × 10-5 kilometers

Cynthia Baker

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Which of the following is a myth about water conservation? a. An important part of water conservation is preventing water pollution. b. Buying bottled water conserves more water than drinking from the tap. c. Air-drying clothes conserves more water than using an electric clothes dryer. d. A front-loading washing machine uses less water than a top-loading washing machine.

Carlton Burgess

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In a compound, chemical energy is contained in the

Bethany Evans

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Which of the following is a typical product of nuclear fission? a. oxygen b. carbon dioxide c. radiation d. water

Kevin Sutter

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Which of the following processes most directly helps create soil from rocks? A. Weathering B. Pressure C. Melting

Heather Maxwell

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Label this heating curve with the phase or phases present. Assume constant pressure.

Brandon Scott

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9. The three types of stress that act on Earth's rocks are compression, tension, and A. strain. B. shear. C. tephra. D. shale.

Donald Ward

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Darwin’s work on the theory of evolution occurred at about the same time that Harvey noticed the continuous circulation of the blood. Linnaeus developed binomial nomenclature. Mendel developed his laws of heredity. Copernicus suggested that the earth orbits the Sun.

Rodney Fox

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The three ropes in the figure are tied to a small, very light ring. Two of these ropes are anchored to walls at right angles with tensions T1 = 20 N and T2 = 60 N. What are the magnitude and direction of the tension vector T3 in the third rope? Correct: Your answer is correct. N. ° (below the positive x-axis)

Timothy Norman

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If the heating curve is reversed, what would best describe the boiling point? point of condensation, melting point, freezing point or sublimation point

Samantha Barber

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When dr. hewitt releases the two projectiles, which one hits the ground first?

Annie Barnes

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What is one way that early scientific practice differed from modern scientific practice?

Karen Wright

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In the history of astronomy, which of the following is true? . A] Tycho Brahe built one of the first observatories. B] Ptolemy was criticized for his work on the heliocentric model. C] Nicolaus Copernicus argued that the sun was the center of the universe. .D] Johannes Kepler argued that Earth was the center of the universe. . .

Nicholas Rivera

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Robby skateboards 0.50 blocks to his friend's house in 1.2 minutes. What is his speed?

Ronald Miller

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What are three mechanisms for reproductive isolation? Which Mechanism isolates two populations of similar frogs with different mating calls?

Curtis Rhodes

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Lifetime fitness is easy to maintain because it requires little effort.

Kristi Hammond

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The Great Plains are also referred to as____. a. marshes c. lowlands b. interior plains d. plateaus

Daniel King

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A major benefit of the daguerreotype process is that ________.

Jennifer Patterson

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Can track storms at different altitudes

Caroline Campbell

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What is the kinetic energy k of an electron with momentum 1.05×10−24 kilogram meters per second?

Ronald Miller

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Which of the following statements are true about metallic bonds? A. Metallic bonds hold together atoms with somewhat similar electronegativities. B. Metallic bonds hold together two atoms of two different nonmetals. C. Metallic bonds exist between two atoms of the same element. D. Metallic bonds hold together a water molecule.

Timothy Norman

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The brain is most active during which portion each sleep cycle

Brandon Scott

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1. What length of time does the geologic time scale cover? a. 2.0 million years b. 4.6 billion years c. 20.5 billion years D. 10.1 million years 2. The largest expanse of time on the geologic time scale is the____. a. Eon b. Epoch c. Era d. Period 3. Which eon of the geologic time scale means "visible life"? a. Phanerozoic b. Proterozoic c. Hadean d. Archean

Nicholas Rivera

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Which pair of undefined terms is used to define a ray? A. Line and plane B. Plane and line segment C. Point and line segment D. Point and line

Roger Moore

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A ball with a horizontal speed of 1.25 m/s rolls off a bench 1.00 m above the floor. part a how long will it take the ball to hit the floor?

Eric Morgan

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New oceanic lithosphere forms as a result of a. sea-floor spreading. c. reverse polarity. b. normal polarity. d. continental drift.

Jessie Thompson

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A wave with a short wavelength will also have a (2 points) Select one: a. high frequency and high energy. b. high frequency and low energy. c. low frequency and low energy. d. low frequency and high energy.

Jeremy Wood

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In a collision, the __________ collision is when an unsecured driver strikes the inside of the vehicle.

Jodi Brooks

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Describe the factors that determine power in your own words (not from a website)

Kathy Robinson

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What would be the result of an alpha particle coming into a magnetic field? A) The alpha particle will stop moving. B) The alpha particle will reverse its direction. C) The alpha particle will be deflected in a curve path. Eliminate D) The alpha particle will continue to travel in a straight line.

Zach Chandler

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