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Physics

There are _____ levels of cell organization recognized by biologists.

Jennifer Patterson

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What type of composition does an igneous rock have that contains mostly plagioclase feldspar and about 30 percent dark silicate minerals?

Ralph Lopez

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Identify the following physical quantities as scalars or vectors. -position -velocity -displacement -speed -acceleration -average velocity -distance

Ross Pratt

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What is the total displacement of the car after five h? 0km 15km 20km 40km Download png

Nicholas Rivera

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What is a solution that has the capacity to hold additional solute at a given temperature called

Rodney Fox

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_______ are atoms that carry an electric charge. A. Colloids B. Electrolytes C. Nonelectrolytes D. Ions

Kevin Sutter

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Which is a land management technique that limits topsoil loss?

Jeffrey Rodriguez

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Which of the following statements about surface waves is true? The strength and duration of the wind controls size and frequency. The longer the wind blows in the same direction, the weaker the waves become. Friction between the wind and surface water decreases the size of the wave. Surface waves are caused by rushing water underneath the surface

Roger Moore

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Sb-34 when operating a boat near other boats or when entering a congested area, why should you watch your wake?

Eric Morgan

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Which of the following statements about the tundra is not true? a. The tundra has limited vegetation. b. There are two main categories of the tundra biome. c. Temperatures in the tundra can get below -20° F. d. The tundra biome does not support animal life. Please select the best answer from the choices provided A B C D

Blair Lewis

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At 600.0 k the rate constant is 6.1× 10–8 s–1. what is the value of the rate constant at 785.0 k?

Nicholas Rivera

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The principal limitation of wind power is unpredictability.True or False

Heather Maxwell

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Which of the following statements about covalent bonds is false? a. The resulting compound is a poor conductor of electricity. b. The resulting compound can be dissolved in water. c. The resulting compound has a dull appearance. d. The bond can be formed only between nonmetals.

Donald Ward

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In a series circuit one of the resistors is replaced with a resistor having a lower resistance value. How does this affect the current in the circuit?

Cynthia Baker

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You can use the curved part of a spoon as a mirror because it light.

Jennifer Patterson

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In any ecosystem, the size of a population A. may change over time. B. only depends on the population's reproductive rate. C. always stays the same. D. only depends on the amount of resources available.

Amanda Johnson

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Without the force of friction, people would not be able to walk.

Deborah Edwards

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The fuzzy edges of Shadows are result of

Curtis Rhodes

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What do electric forces between charges depend on? a. the quantity of charge involved b. how far apart the charges are. c. both a. and b. d. none of the above

Amanda Johnson

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Feeling slightly uncomfortable during exercise A. is completely normal and is to be expected. B. means that you're completely out of shape. C. can indicate that there's a problem with your heart.

Cynthia Baker

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Which of the following leads to the conclusion that momentum is conserved?. A) proportionality between weight and mass. B)equal magnitude and opposite direction of action-reaction pairs of forces. . C) equivalence principle. .D) relation between translation and rotation of an object that is rolling.

Caroline Campbell

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Sb-28 a collision could occur when the distance decreases and bearing between two vessels does what?

Kaitlin Dean

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Which of the following is not true about covalent compounds? A.they are made of molecules and can be gases, liquids or solids B.they have low melting and boiling points C.they are good electrical conductors in in all phases D.many are soluble in nonpolar Liquids but not in water

Rodney Fox

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A gamma ray primarily consists of pure energy and no mass. a. True b. False

James Washington

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Which method of charge transfer occurs when there is no contract between materials?

Ronald Miller

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The continental crust has the average composition of _____.

Jodi Brooks

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Which statement correctly describes gravity Download png

Megan Page

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It is best to say that efficient plumbing _______. a. reduces water pollution by using less water b. reduces water pollution by using cleaner water c. increases water pollution by using more water

Kristi Hammond

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Which factors affect gravitational potential force but not elastic potential energy

Caroline Campbell

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As Chelsea removes her clothes from the dryer, she sees sparks, which are examples of ________________. A.) Conduction B.) Induction C.) Static discharge D.) Static Electricity

Kaitlin Dean

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4. The shape (not the size) of an electron cloud is determined by the electron's ____. energy sublevel position speed principal quantum number

Annie Barnes

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A box of mass m is sliding along a horizontal surface. part a the box leaves position x=0 with speed v0. the box is slowed by a constant frictional force until it comes to rest at position x=x1. find ff, the magnitude of the average frictional force that acts on the box.

Annie Barnes

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Which is a tool used by scientists to determine the composition of objects? a hologram a spectrometer a wave front a prism

Timothy Norman

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Public transportation is the most fuel efficient way to get to your local store. T or F

Blair Lewis

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As a safety precaution when carrying a revolver, what should the hammer always be resting on?

Bethany Evans

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Solar cells convert what type of energy into electrical energy? A. thermal B. electromagnetic C. chemical D. nuclear

Victoria Fowler

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Which statements best describe the atoms of the gas neon? Check all that apply.

Ross Pratt

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Describe some basic guidelines for safe PRE

Rodney Fox

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A tank with a flat bottom is filled with water to a height of 4 meters. What is the pressure at any point at the bottom of the tank? (You can ignore atmospheric pressure when calculating your answer.) A. 18.9 kPa B. 9.8 kPa C.39.2 kPa D. 4.0 kPa

Eric Morgan

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When an earthquake occurs, S waves are the first seismic waves to arrive at a given location. Please select the best answer from the choices provided T F

Roger Moore

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What type of rays are used to locate cavities in teeth? Radio waves, infrared rays, ultraviolet rays, microwaves, x-rays, or gamma rays

Curtis Rhodes

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. Question: 23 of 24:. Which statement is true regarding DC current?. Select one of the options below as your answer:. . A.. The electrons move back and forth.. B.. There can only be one voltage supplied.. C.. A high voltage current can be transformed into a low voltage current.. D.. A low voltage current can be transformed into a high voltage current.. E.. This is what is sent from the power plants to your home..

Rodney Fox

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To be considered a source of water pollution the source must include a chemical

Ashley Howard

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Draw the vector C⃗ =0.5A⃗ +2B⃗ .

Ashley Howard

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List two ways in which heterogeneous mixtures differ from elements

Jessie Thompson

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When an earthquake occurs, s waves are the first seismic waves to arrive at a given location.?

Victoria Fowler

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