A person takes a trip, driving with a constant speed of 99.0 km/h except for a 22.0-min rest stop. The person's average speed is 67.3 km/h. (a) How much time is spent on the trip?

(b) How far does the person travel?

the answer is the first electromagnet (a). this is because it has more coils around the ferromagnetic material. increasing the number of coils increases the surface area in which the metal interacts with the current in the coil. this enables more atoms in the metal to become aligned hence becoming more magnetized.

radial fractures in a piece of glass look most like which of the following?

a. spokes of a wheel

b. a circle

c. a zig zag

d. none of the above

the correct answer is a. spokes of a wheel

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