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A ring with a clockwise current (as seen from above the ring) is situated with its center directly above another ring, which has a counter-clockwise current, as shown in the figure. In what direction is the net magnetic force exerted on the top ring?

The small, cone-shaped muscles that project into the lumina of the ventricles of the heart are referred to as:

A proton moves in the negative x direction, through a uniform magnetic field in the negative y direction. The magnetic force on the proton is: 

Which of the following is a single visceral branch of the abdominal aorta?

The lumbar arteries are:

An 11.5-mH inductor and a 2.0-Ω resistor are wired in series to an ideal battery. A switch in the circuit is closed at time 0, at which time the current is zero. The current reaches half its final value at time:

Where is deoxygenated blood found in veins?

A straight wire that is 0.60 m long is carrying a current of 2.0 A. It is placed in a uniform magnetic field of strength 0.30 T. If the wire experiences a force of 0.31 N, what angle does the wire make with respect to the magnetic field?

A ring with a counter-clockwise current (as seen from above the ring) is situated with its center directly above another ring, which also has a counter-clockwise current, as shown in the figure. In what direction is the net magnetic force exerted on the top ring?

The average volume of blood in the adult human body is: