Physics Questions
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A charged particle is observed traveling in a circular path of radius R in a uniform magnetic field. If the particle was traveling twice as fast, the radius of the circular path would be
A single current-carrying circular loop of radius R is placed next to a long, straight wire, as shown in the figure. The current I in the wire flows to the right. In which direction must current flow in the loop to produce a net magnetic field of zero at its center?
Typically what access is density showed on in a graph?
Sound travels in a straight line, true or false
A long, straight, horizontal wire carries current toward the east. A proton moves toward the east alongside and just south of the wire. What is the direction of the magnetic force on the proton?
The magnetic force on a current-carrying wire in a magnetic field is the strongest when
A long straight wire lies on a horizontal table and carries an ever-increasing current toward the north. Two coils of wire lie flat on the table, one on either side of the wire. When viewed from above, the direction of the induced current in these coils is
A bar magnet is oriented above a copper ring, as shown in the figure. If the magnet is kept fixed while the ring is dropped, what is the direction of the current induced in the ring, as viewed from below the ring?
A coil lies flat on a horizontal tabletop in a region where the magnetic field points straight down. The magnetic field disappears suddenly. When viewed from above, what is the direction of the induced current in this coil as the field disappears?
What are the bones and cartilages (discussed in class) of the larynx? For the mid-term, be prepared to identify on a diagram. For the quiz, be prepared to name and outline paired or unpaired, bone or cartilage.
What are the "parts" of the larynx? For the mid-term, be prepared to identify on a diagram. This would include both the larynx tube slide and the vocal fold slide"
The three loops of wire shown in the figure are all hanging in the same uniform magnetic field B⃗ that is perpendicular to the page and does not vary with time. Loop 1 swings back and forth like the bob in a pendulum, Loop 2 rotates about a vertical axis, and Loop 3 oscillates up and down at the end of a spring. Which loop (or loops) will have an emf induced in them?
An outer metal ring surrounds an inner metal ring, as shown in the figure. The current in the outer ring is counterclockwise and decreasing. What is the direction of the induced current in the inner ring?The figure shows two concentric rings. The current in the outer ring is directed counterclockwise.
Explain the differences between vowels, voiceless fricatives, and voiced fricatives with regard to type of sound (complex vs simple, periodic vs aperiodic vs both)?
A coil lies flat on a tabletop in a region where the magnetic field vector points straight up. The magnetic field vanishes suddenly. When viewed from above, what is the sense of the induced current in this coil as the field fades?
A circular coil of copper wire is lying flat on a horizontal table. A bar magnet is held above the center of the coil with its south pole downward. The magnet is released from rest and falls toward the coil. As viewed from above, what is the direction of the current induced in the coil as the magnet approaches the coil?
A coil of wire containing N turns is in an external magnetic field that is perpendicular to the plane of the coil and it steadily changing. Under these circumstances, an emf ε is induced in the coil. If the rate of change of the magnetic field and the number of turns in the coil are now doubled (but nothing else changes), what will be the induced emf in the coil?
Relationship between frequency and period formula
When is a system compliant (stiffness) dominant?
Transverse waves are to radio waves as longitudinal waves are to