Answers created by Biology_geek
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Why does a person's face become flushed when they are working hard?
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A Dupuytren contracture affects which fingers?
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Can the heart itself be damaged by an external force, such as being struck forcefully in the chest? What would be the result of this type of injury?
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A sprinter runs 100 meters in 11.5 seconds. What is the runner's average running rate in meters per second?
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A guy drops a rock from a bridge and it hits the river 3.60s later. How high is the bridge?
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What are premature ventricular contractions (PVCs) of the heart? How are these treated?
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Which is more likely to be changed by heating a protein—its primary structure or its tertiary structure?
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Why are topographic maps are important?
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What would the topography of an area be like if the contour lines were close together, and if they were far apart?
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Why do you have a sour taste in your mouth when you vomit?
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What are some examples of smooth muscle tissue? What are some examples of skeletal muscle?
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How can convection help to cool your body?
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What is the difference between congestive heart failure and coronary artery disease?
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What are some examples of diffusion?
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If a violin and a flute each play 256 Hz tones. Which wave has the longer wavelength?
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How do you calculate specific heat capacity given heat flow, mass and temperature change?
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What are resistor combinations?
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Question #886c6
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What is a series circuit?
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Why is thermal expansion not visible?
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Question #f807e
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Where is the object located if the image that is produced by a concave mirror is smaller than the object?
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The Eiffel Tower in Paris stands 300.0 m tall on a day of average temperature, 22.0°C. How much taller is the steel tower on a hot summer day (T = 40°C) in centimeters? (αsteel = 11 x 10-6 °C-1)
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What is the change in length of an object when it undergoes a temperature change related to?
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Do sound waves travel through compression waves or longitudinal waves?
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Determine which of the following must change when pitch gets higher: amplitude or frequency or wavelength or intensity or speed of the sound waves?
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If an object is placed 25.0 cm from a concave mirror whose focal length is 5.0 cm, where is the image located?
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If a concave mirror with a focal length of 10.0 cm creates a real image 30.0 cm away on its principal axis, how far from the mirror is the corresponding object?
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Question #f8fc7
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Question #362a7
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What is the percent concentration of sodium chloride in normal saline?
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Question #f8f9b
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Question #d601d
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What is the angle of refraction if a ray of light passes from water into air at an angle of 30 degrees?
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Does refraction change the direction of light when it passes from air to glass?
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Is the angle of refraction measured from the boundary?
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What is the SI for a unit of power?
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How can I construct vector diagrams?
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Question #362b8
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Question #c1002
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Why is electric force represented as a vector?
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Question #516fc
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How does resistance in a series circuit change when more bulbs are added?
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Question #69c90
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Question #886bc
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How many branches can a series circuit have?
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Question #472fa
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Does the mass of a pendulum affect its period?
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Question #886c0
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Question #472ed
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Question #dc6b3
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How are work and kinetic energy related?
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How are inertia and mass related?
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Why is acceleration a vector quantity?
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How should all vector diagrams be drawn?
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How does a vector quantity differ from a scalar quantity?
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Question #50365
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Question #23b53
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Question #23cf8
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Question #4fdbb
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Why do scientists prefer the SI units over the old English system of measurement?
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Why are measurements approximations?
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What SI unit is energy measured in?
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Question #2cd1b
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Question #472cf
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Question #3845f
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What is the unit for the index of refraction?
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Question #2cd2f
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What is a lever?
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What is a pulley?
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Why is a ladder an inclined plane?
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How do a wheel and axle work?
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How does Newton's first law affect roller coasters?
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Question #72c10
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Question #d6019
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Question #6393b
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Question #a6abc
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Question #23b76
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Question #280e6
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How do you calculate the displacement of water?
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How do you calculate the magnitude of vectors?
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Question #4d966
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Question #5fa3a
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Question #2d593
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If object A attracts object B with a gravitational force of 5N from a given distance between the two objects is half, what is the changed force of attraction between them?
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How do vectors work in physics?
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What is a parallel circuit?
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Question #f749d
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Question #f8fe3
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What color light has the highest frequency?
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How are parallel circuits used in homes?
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What is the index of refraction?
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What is the equation for Snell's law?
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How do you calculate the total resistance of a parallel circuit?
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Question #2d583
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What atoms are found in carbohydrates?
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How many base SI units are there?
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How do changes of state relate to the kinetic theory?
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How do you convert SI units?
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How do the specific heats of metals compare with water?
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