Physics
Kinematics, force analysis, electricity, and equation-driven reasoning.
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multiple choice question looping wire into a cylindrical coil (a soleno…
the magnetic field lines produced by the wire are concentrated inside of the coil and have the same orientation
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current attempt in progress a high - jumper, having just cleared the ba…
The air mattress exerts the same impulse, but a smaller net average force, on the high - jumper than does the hard ground.
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fill in the blank question for a magnet, the forces of attraction are c…
poles
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multiple choice question the magnetic field lines around the wire produ…
at right angles to the length of the wire
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a particle is moving along the +x axis, and the graph shows its momentu…
A and C (a tie), B
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multiple choice question substances that have magnetic properties (ferr…
are strongly attracted to magnets
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current attempt in progress as the text discusses, the conservation of …
Only 2 and 5 are isolated systems.
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multiple choice question the tiny region (each arrow region in the imag…
magnetic domain
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as the text discusses, the conservation of linear momentum is applicabl…
Only 2 and 5 are isolated systems.
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a group of particles has a net momentum equal to zero. which of the fol…
None of the above is true.
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fill in the blank question electrical is done when a potential differen…
work
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4. how much does a 40 - kg student weigh on earth in newtons?
\(392\space N\)
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a group of particles has a net momentum equal to zero. which of the fol…
None of the above is true.
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multiple choice question electricity is likely the cause of gravity mag…
magnetism
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fill in the blank question the property of opposing or reducing a curre…
resistance
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multiple choice question stronger magnetic fields are represented by dr…
closer together
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multiple choice question the two magnetic poles of a magnet are where t…
forces of attraction seem concentrated
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multiple choice question negative charges flowing from the negative to …
D. electron, conventional
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to answer this question, first click here to view the associated video.…
IV only
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multiple choice question substances that are strongly attracted to magn…
magnetic
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multiple choice question an electric circuit contains some device in wh…
source of energy to move the charges to a higher potential against an electric field
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multiple choice question disregarding losses to resistance, electric wo…
potential multiplied by the charge
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in 2.11 minutes, a ski lift raises four skiers at constant speed to a h…
\(2427\space W\)
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multiple choice question the key to maintaining an electric current is …
maintaining a separation of charges
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multiple choice question electrical resistance (r) is the property of o…
opposing or reducing a current
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multiple choice question a moving or flowing charge is known as a(n)___…
electric
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multiple choice question when work is done moving two like - charged pa…
increases
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a pendulum consists of a small object hanging from the ceiling at the e…
\(59.5^{\circ}\)
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multiple choice question the conventional current model describes a____…
C. positive; negative
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multiple choice question an electric charge produces a force field in t…
electric
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consult multiple - concept example 5 for insight into solving this prob…
\(3.57\ m/s\)
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select all that apply select the components of a typical electric circu…
A. A device in which work is done, B. A device that creates a higher electrical potential
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3. what is the mass, in kilograms, of a large dog that weighs 441 newto…
\(45\)
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select all that apply according to coulombs law, what are the two facto…
- The amount of charge on each object - The distance between them
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multiple choice question if the electric field potential goes to zero, …
stop
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multiple choice question a coulomb (c) is equivalent to the charge resu…
6.24 x 10¹⁸ electrons
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multiple choice question static electricity (an electrostatic charge) i…
electrons
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which of the following sets of quantum numbers is not allowed?a $n = 2$…
The set of quantum numbers in option c (\(n = 2\), \(l = 2\), \(m_{l}=2\)) is not allowed.
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multiple choice question when two like - charged particles move away fr…
decreases
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multiple choice question an electric field around a charged object is a…
force field
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multiple choice question the force (f) felt between two charged objects…
C. Coulomb's law
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select all that apply select all the statements that are true regarding…
- B. Electrons and protons cannot be separated from their charge. - C. The charge of protons and electrons is opposite. - D. Protons have a positive charge.
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fill in the blank question the metric quantity of electric charge (q) i…
coulombs
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fill in the blank question electricity involves the movement of from at…
electrons
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multiple choice question a charge that can reside on an object and chan…
electrostatic
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multiple choice question the word electricity is based upon the greek w…
amber
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true or false question true or false: electrons move around an atom and…
False
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fill in the blank question j. j. thomson conducted experiments on elect…
electrons
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multiple choice question as a plane flying greater than the speed of so…
sonic boom
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multiple choice question the doppler effect is the change in pitch due …
change in pitch due to the relative motion of the source and the receiver of a sound
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multiple choice question reflected waves that interfere with incoming w…
B. standing
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overtone (harmonics) occur at those that produce standing waves in a st…
C. frequencies
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multiple choice question shock waves are the result of a plane that is …
speed of sound
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fill in the blank question if a string is attached at both ends and the…
twice
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multiple choice question the change in pitch that results from the rela…
Doppler
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fill in the blank question nodes are places of interference and antinod…
Nodes are places of **destructive** interference and antinodes are places of **constructive** interference.
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multiple choice question a standing wave results when the position(s) o…
nodes and antinodes remain constant
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from the fundamental frequency on up, those frequencies that are capabl…
harmonics
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multiple choice question an object that creates a sound. warms up vibra…
vibrates
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fill in the blank question the first harmonic of a periodic function is…
fundamental
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multiple choice question a string attached at both ends will have one f…
fundamental
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select all that apply loudness, the subjects interpretation of sound, i…
energy of the vibrating object, condition of the air that the sound wave travels through, distance between you and the vibrating source
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multiple choice question the formation of nodes and antinodes is direct…
destructive and constructive interference
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multiple choice question intensity is defined as the ______ transmitted…
power
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fill in the blank question a vibrating object creates waves that can be…
sound
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multiple choice question if waves traveling in opposite directions meet…
constructive interference
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multiple choice question an echo is a reflected sound that can be _____…
distinguished from the original sound
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multiple choice question the mixing of reflected sounds with the origin…
reverberation
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2. a frozen turkey bought in canada is labeled “5.0 kilograms.” this is…
\(49\ N\)
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fill in the blank question a measure of the energy a sound wave is carr…
intensity
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section 5.1 1. calculate the weight of a 66 - newton bowling ball in po…
\(14.84\) pounds
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the \check answers\ button, you will have a chance to see what question…
a. Mouth, b. Esophagus, d. Stomach, g. Small intestine, h. Large intestine
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if a baseball is projected upward from ground level with an initial vel…
144
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if two waves meet and are in phase, the result is interference; if two …
Constructive; Destructive
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fill in the blank question a sound that has been reflected and can be d…
echo
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fill in the blank question when waves encounter different conditions, s…
boundary
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multiple choice question reverberation of sound waves involves _. o the…
the mixing of reflected and original waves
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multiple select question select all that apply select all the true stat…
- Wave fronts are the same part of each wave in a spherical wave. - Small sections of spherical waves can be considered linear waves at some distance from the source.
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in the question groups, after you select your answer on the first quest…
d. blood glucose management
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multiple choice question different materials absorb and reflect sound w…
at different ratios of absorption and reflection
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multiple choice question which statement below reflects the relative sp…
Sound waves are slower than light waves.
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select all that apply what can happen when a sound wave front strikes a…
A. Absorption, B. Reflection, D. Transmission
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multiple choice question sound waves require a medium in which to be tr…
outer space
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multiple choice question refraction is the o bouncing of waves off of a…
bending of a wave front
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multiple choice question sound waves with frequencies greater than 20,0…
ultrasonic; infrasonic
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multiple choice question at a great enough distance from a source, a sm…
spherical; linear
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true or false question true or false: in air, light waves travel faster…
True
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multiple choice question the symbol for wavelength is o / o f o t o λ n…
\(\lambda\) (the option with \(\lambda\))
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multiple choice question sound waves do not travel in outer space becau…
space is a vacuum, and thus there is no medium that can carry the disturbance
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true or false question true or false: mammals (humans, dolphins, dogs, …
False
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multiple choice question a transverse wave causes a disturbance _. perp…
perpendicular to the direction of its travel
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match the terms for longitudinal sound waves to their frequencies in he…
- Infrasonic \( ightarrow\) Less than \(20\space Hz\) - Audible \( ightarrow\) Between \(20\) and \(20,000\space Hz\) - Ultrasonic \( ightarrow\) Over \(20,000\space Hz\)
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subconscious regulation of upper limb muscle tone and movement is a fun…
Rubrospinal tracts
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multiple choice question a disturbance that causes particles to move cl…
longitudinal
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matching question match the wave terminology to its description. wave c…
Wave crest (A) → The maximum disturbance from the undisturbed (rest) position Wave trough (B) → The maximum disturbance in the opposite direction from the rest position Amplitude …
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fill in the blank question traveling vibrations in a medium are better …
waves
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multiple choice question wavelengths are measured in ______ and denoted…
meters
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multiple choice question a complete vibration occurs with a motion away…
cycle
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milgrams study involving a teacher, a learner, and an electric shock wa…
C. obedience
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question which of the following is the site of decussation of the later…
Pyramids of medulla oblongata