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Physics

What function does a generator perform inside a power plant? A.The generator stores electrical energy for later use in homes and businesses. B.The generator transforms the mechanical energy of the turbine into electrical energy. C.The generator spins the turbine to create mechanical energy. D.The generator spins the turbine to create electrical energy.

Jodi Brooks

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What principle explains why lifting heavy objects is easier using ramps?

Kristi Hammond

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A small airplane flies at a velocity of 145 km/h toward the south as observed by a person on the ground. The airplane pilot measures an air velocity of 172 km/h an hour. What is the velocity of the wind that affects the plane?

Kristi Hammond

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Compared to water, most metals have low specific heats. true or false

Kevin Sutter

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Which example best illustrates that light behaves like particles? Light bends as it strikes a window. Light bounces off a white cement sidewalk. Light travels in space at a speed of about 3.0 x 108 m/s. Light increases in speed as it moves through matter.

Donald Ward

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Describe a technology used in space exploration.

Ralph Lopez

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Most ionic bonds form when elements from __________.Download png

Daniel King

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Select all that apply. _____ is a place where the crust of the lithosphere has fractured. A fault A subduction zone An oceanic trench A river

Eric Morgan

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Population I stars are found in what area of the Milky Way? A. Central bulge B. Globular clusters C. Halo D. Spiral arms

Samantha Barber

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Hich of these statements explains the relationship among elements, compounds, and mixtures? Elements are made of compounds and mixtures. Both compounds and mixtures are made up of elements. Mixtures are made of elements, and elements are made of compounds. Compounds are made of mixtures, and mixtures are made of elements.

Craig Stewart

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Briefly describe how the Sun produces energy. plz and thank you :)

Alexa Spicer

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When used as an archetype, which season is most often associated with rebirth and life? summer fall winter spring

Roger Moore

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What is the resultant velocity vector when you add your swimming velocity and the current velocity? give the x and y components in meters per second separated by a comma?

Kaitlin Dean

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It is impossible to destroy __________. A. motion B. momentum C. energy D. mass

Zach Chandler

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From which of the following do spiral galaxies form? A. High-density proto-galactic clouds B. Rapidly spinning proto-galactic clouds C. Colliding/merging proto-galactic clouds D. Rapidly cooling proto-galactic clouds

Roger Moore

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Mrs. Drover is able to see the taxi driver because of the aperture, or A. opening. B. picture. C. mirror. D. inner sight.

Samantha Barber

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Convergent faults ___. can form mountains and volcanoes. happen when tectonic plates move away from one another. create new oceanic crust through sea-floor spreading. happen when tectonic plates stop moving.

Eric Morgan

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The earth system concept emphasizes which of the following? Question 2 options: how everything on the earth is interconnected how you can study each system in isolation the concept that the earth is round how the earth's systems came about

Chelsea Hayes

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Suppose you have two small pith balls that are 5.5 cm apart and have equal charges of -29 nc?

Daniel King

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Which of the following has a natural pH that is acidic? rain fresh water lakes sea water tap water

Cynthia Baker

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What type of friction is the type of kinetic friction that is difficult to overcome

Jeffrey Rodriguez

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A 4-kg ball has a momentum of 12 kg∙m/s. what is the ball's speed?

Caroline Campbell

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Which of two factors influence the weight of an object due to gravitational pull? a.the mass and radius of the planet b.the shape and radius of the planet c.the rotation and mass of the planet d.the composition and rotation of the planet?

William Cain

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A ________ is a geographical area with a base transceiver station at its center.

Eric Morgan

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Discuss how the use of pedometers benefited people at high risk for type 2 diabetes

Samantha Barber

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One similarity between work and power is that in order to calculate both you must know

Samantha Barber

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What do we mean when we say that a nucleus undergoes radioactive decay?

Ramon Kelly

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Which of the following statements about earthquakes is false? A. The building and release of stress along a plate boundary can result in an earthquake. B. Earthquakes can occur far from plate boundaries. C. Seismic waves originate at a point called the focus. D. No amount of force can cause rock to deform.

James Washington

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Which type of transformer is found outside a residential house

Blair Lewis

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Digitized information can be used by computers true or false

Kathy Robinson

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Which of the following is not a benefit of increased energy efficiency?

Justin Parker

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INQUIRY IS A TYPE OF SCIENCE PROMPTED BY A QUESTION TRUE OR FALSE

Karen Wright

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Which describes how sliding friction affects pushing a cereal box across a tabletop? It acts in the direction of motion. It acts in the direction opposite of motion. It is usually greater than static friction. It equals the weight of the box.

Rodney Fox

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Mechanical waves use matter to transfer energy. Please select the best answer from the choices provided T F

Caroline Campbell

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A lithium ion is different than a lithium atom because it a. is much more massive. b. has an extra neutron. c. has a different electric charge. d. is in a different group in the periodic table. PLZ HELP!

Jessie Thompson

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Which property of potential energy distinguishes it from kinetic energy? a. mass b. shape and position c. force d. work and power

William Cain

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Which of the following ocean-floor features would contain the newest rocks? Abyssal plain Continental shelf Continental slope Mid-ocean ridge

Theresa Perry

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What is the value of the temperature 15 degrees Celsius in degrees Kelvin? A. 455 degrees B. 258 degrees C. 288 degrees D. 475 degrees

James Washington

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Which of the following creates a magnetic force?. A) No Poles. B) Magnetic Charge. C) Magnetic Current. D) North and South Poles

Cynthia Baker

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With his Square Deal, Theodore Roosevelt hoped to a. help pull the United States out of the Great Depression. b. increase the influence and power of the United States among the nations of the world. c. keep the wealthy and powerful from taking advantage of small business owners and the poor. d. help business trusts remain competitive.

Carlton Burgess

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To dry the brakes, drive slowly in __________ and apply light pressure on your brake pedal.

Deborah Edwards

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Savanna regions developed during the Triassic period. true or false

Karen Wright

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A seismogram shows that P waves travel a. at the same speed as surface waves. b. more slowly than S waves. c. at the same speed as S waves. d. faster than S waves.

Timothy Norman

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Lavoisier made an important contribution to chemistry by _____. being the first to use the term "atom" describing the orbits of electrons discovering the proton identifying substances by weight

Ralph Lopez

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A(n) is a material that causes a wave to bounce off of it

Zach Chandler

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Market saturation results from excess

Whitney Matthews

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Which allele combination represents a female who is a carrier for an X-linked recessive disorder?

Ralph Lopez

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Which statement best describes wavelength? A. Wavelength is the same as pitch B. Wavelength is the speed at which a wave travels C. Wavelength is the length of one complete wave cycle D. Wavelength is the length of two complete wave cycles

Jeffrey Rodriguez

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Which statements are correct? Check all that apply. A. An insulator slows the flow of heat. B. A conductor increases the flow of heat. C. A conductor decreases the flow of heat. D. An insulator speeds up the flow of heat.

James Washington

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