What is the correct integral for the electric potential V at x­0 on the positive x-axis due to a uniform linear charge density λ{“version”:”1.1″,”math”:”λ”} on the y-axis between y = 0 and y = L?

A uniform ring of charge sits in the yz-plane with it center on the origin. The ring has a 16 cm radius and an 80 μC{“version”:”1.1″,”math”:”80 μC”} charge. What is the force on a -30 μC{“version”:”1.1″,”math”:”-30 μC”} point charge at (25 cm, 0, 0) due to the ring?

Two identical particles have the same mass m and charge q and are initially separated by a distance a. If they are both released from rest, what is their speed when a long distance apart? Both particles will have the same speed.

The diagram shows a point charge q to the right of a charged conducting sphere with net charge Q.  Which is at higher potential, point A or point B?

A uniform ring of charge sits in the yz-plane with it center on the origin. The ring has a 16 cm radius and an 80 μC{“version”:”1.1″,”math”:”80 μC”} charge. What is the force on a -30 μC{“version”:”1.1″,”math”:”-30 μC”} point charge at (25 cm, 0, 0) due to the ring?

Which of the following variables is an “exogenous” variable in Mankiw’s classical model of a closed economy?

Identify this basal nuclei.  

Identify these structures collectively at the intersection.  L2 vertebral level  

Most unipolar neurons are sensory neurons that transmit information along afferent pathways to the central nervous system.

Identify this region of the brain.