Question 7 of 10 Why do the north and south poles of these magnets attract each other?

SNSN

A. They have two different magnetic fields.

B. They have opposite electrical charges.

C. The magnetic fields of the two magnets repel each other.

D. The opposite magnetic poles of the two magnets face

each other.

Light traveling in a medium with a refractive index 1.19 is incident on a plate of another medium with index of refraction 1.79. at what angle of incidence is the reflected light fully polarized?

1.what is where an object is located 2. what is how fast an objects speed is changing 3. what is how fast an object is moving

You have two photos of a person walking. one shows the person at the corner of third and main streets, the other shows the person at the corner of tenth and main streets. there are lampposts at every corner in this town, and the first picture shows it to be 10: 32: 00 exactly. the second picture shows it to be 10: 49: 30. you know three facts: (1) all of the clocks are synchronized; (2) there are exactly 12 equal-sized blocks per kilometer in this town; and (3) the streets that cross main in this area are numbered consecutively, with no interruptions. what is the person’s average speed in kilometers per hour?