Two very long, straight parallel wires carry currents of equal magnitude, but opposite direction, perpendicular to the paper in the directions shown in the figure. The direction of the net magnetic field due to these two wires at point a, which is equidistant from both wires, is;
Read DetailsThe diagram below is of a triangular prism that has three rectangular sides and two triangular sides. This prism is placed in a region of uniform magnetic field of magnitude 0.160 T directed in the positive x direction. length ca = df = 0.5 m length cf = be = 2 m length cb = fe = 0.75 m
Read DetailsSuppose the rod in the figure is moving at a speed of 5.0 m/s in a direction perpendicular to a 0.80 T magnetic field. The rod has a length of 1.6 m and a negligible electrical resistance. The rails also have negligible resistance. The light bulb, however, has a resistance of 96 Ω. NOTE: Answers must include units. The emf produced in the rod is [emf]. The magnitude of the current induced in the circuit is [C]. The direction of the current induced in the circuit is [D]. (i.e. CW or CCW) The electric power delivered to the bulb is [P]. The energy used by the bulb in 60 seconds is [E].
Read DetailsThe diagram below is of a triangular prism that has three rectangular sides and two triangular sides. This prism is placed in a region of uniform magnetic field of magnitude 0.160 T directed in the positive x direction. length ca = df = 0.5 m length cf = be = 2 m length cb = fe = 0.75 m
Read DetailsThe sliding filament model of contraction is used to help explain the phenomenon of muscle contraction in which thin filaments slide past thick filaments, thereby shortening sarcomeres. As you have already studied this semester, this can only happen through cross bridge attachment. List the two main proteins that are directly involved in forming cross-bridges.
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