a. A lightning strike causes magnetized metal pieces near it to point around a circle with the direction (clockwise or counterclockwise) dependent on the particular lightning strike. If the magnets end up being pulled around the lightning with their north poles pointing clockwise when viewed from the sky looking down to the ground, which of the following best describes the direction of magnetic field lines around the lightning strike when viewed facing the ground?

Group of answer choices

The magnetic field points around the ligthning strike in a clockwise direction

The magnetic field points around the lightning strike in a counter-clockwise direction

The magnetic field points radially outward from the center of the lightning strike

The magnetic field line points in unpredictable directions

The magnetic field points radially toward the center of the lightning strike

b. Two moons orbit the same planet. The inner moon at an average distance of 1.9110^8m and has an orbital period of 2.1610^5s. Calculate Kepler's constant for this planet and use it with the outer moon's orbital radius of 4.3610^8mto make an estimate of theorbital acceleration of the outer moon in meters per second per second to two significant figures.

c. Above is the spectrum of light produced by neon in a vial of glass when high voltage is applied across it.

If the wavelength of the bright yellow light (the line segment closest to center) is measured to be 596 nm using diffraction, which of the following is a possible wavelength for the green light segment (the first line segment to the left of center)?

Group of answer choices

744 nm

736 nm

616 nm

596 nm

461 nm