143 was billed as a major pop comeback but faced backlash when fans learned producer Dr. Luke had contributed to the record. The lead single, “Woman’s World,” underperformed commercially, and the album drew the lowest Metacritic score in over a decade. At 16, Perry released a gospel album titled Katy Hudson (2001) under Red Hill Records, which was unsuccessful. She moved to Los Angeles at 17 to venture into secular music, and later adopted her stage name from her mother’s maiden name. Perry recorded an album while signed to Columbia Records, but was dropped before signing to Capitol Records. She rose to fame with One of the Boys (2008), a pop rock album containing her debut single “I Kissed a Girl” and follow-up single “Hot n Cold”, which reached number bigwins casino login one and three on the U.S.

Mexican national Miguel Angel Garcia-Hernandez, 32, was shot at least eight times during last Wednesday’s sniper-style attack and was rushed to Parkland Hospital in critical condition before dying of his injuries, CBS News reported. Between Jan. 20 and mid-June, an average of 47 people were held there each day, spending roughly seven hours in detention, according to a CBS News analysis of ICE data compiled by the Vera Institute of Justice and the Deportation Data Project. One man, Norlan Guzman-Fuentes, from El Salvador, was killed when a sniper fired his rifle from the roof of a nearby office building before 7 a.m.

To improve your intuition, we show a three-dimensional variant of the potential in a system with two opposing charges. Figure 7.33 displays a three-dimensional map of electric potential, where lines on the map are for equipotential surfaces. The hill is at the positive charge, and the trough is at the negative charge. Note that the cut off at a particular potential implies that the charges are on conducting spheres with a finite radius. One of the rules for static electric fields and conductors is that the electric field must be perpendicular to the surface of any conductor.

For a point charge, equipotential surfaces are spheres centered on the charge. The equipotential surface concept builds clear links to other JEE topics like Gauss’s law, potential energy of electric dipole, and electrostatic potential and capacitance. Practice visualising and mapping surfaces for all typical configurations. Remember, electric field is always highest where equipotential surfaces are closest together. The surface charge density on a long straight metallic pipe is latex\sigma/latex. These have equipotential lines that are parallel to the plates in the space between and evenly spaced.

An important application of electric fields and equipotential lines involves the heart. The movement of electrical signals causes the chambers of the heart to contract and relax. When a person has a heart attack, the movement of these electrical signals may be disturbed. An artificial pacemaker and a defibrillator can be used to initiate the rhythm of electrical signals.

Nonreligious music was forbidden in the Hudson household, and she grew up singing church hymns and gospel tunes. As a teenager, she learned to play the guitar and sought a musical career in Nashville with a Christian record label, but her debut album, the gospel-influenced Katy Hudson (2001), sold poorly. By then, however, Hudson had found new musical models in such rock artists as Freddie Mercury and Alanis Morissette, whom she had discovered through friends. She soon moved to Los Angeles to pursue success in the secular music realm, adopting her mother’s maiden name, Perry, to avoid confusion with the actress Kate Hudson. While traveling the globe, Perry will not only be responsible for entertaining arenas full of fans but also her preschool-age daughter. “I want submissions for where I should take her on days off,” she says, listing parks, children’s museums and water parks as places she’s seeking in each city.

Gravity is perpendicular to the equipotential surfaces of the gravity potential.In gravity, a hollow sphere has a three-dimensional equipotential region inside, with no gravity from the sphere (see shell theorem). As expected, in the region \(r \geq R\), the electric field due to a charge \(q\) placed on an isolated conducting sphere of radius \(R\) is identical to the electric field of a point charge \(q\) located at the center of the sphere. This means that equipotential surfaces around a point charge are spheres of constant radius, as shown earlier, with well-defined locations. When an object moves against an electric field, it gains energy that is referred to as electric potential energy.

This implies that a conductor is an equipotential surface in static situations. There can be no voltage difference across the surface of a conductor, or charges will flow. One of the uses of this fact is that a conductor can be fixed at zero volts by connecting it to the earth with a good conductor—a process called grounding.

In conclusion, equipotential surfaces are an invaluable tool for understanding and analyzing various physical phenomena. Their properties and applications span a wide range of disciplines, making them a fundamental concept in physics and engineering. The amount of work required to transport a unit charge from a reference point to a specific point against the electric field is known as electric potential. No work is done in moving a charge across an equipotential surface. If they did, a single point would have two different potential values simultaneously, which is impossible in physics. Give examples of equipotential surfaces around a point charge and a dipole.