In this Quick Write activity, you will take the perspective of a medieval trader from one of the cities listed below. As that trader, you will reflect on the geographic advantages of your home city. In your response, be
sure to explain the connection between geography and trade in Africa, as well as include reference to the
natural resources of your city.
You are a trader from medieval (choose one):
• Aksum (Axom)
Djenne (Mall
• Timbuktu (Mall)
Benin (Yoruba)
• Zimbabwe (Monomotapa)
.

Afisherman notices that his boat is moving up and down periodically without any horizontal motion, owing to waves on the surface of the water. it takes a time of 2.20 s for the boat to travel from its highest point to its lowest, a total distance of 0.670 m . the fisherman sees that the wave crests are spaced a horizontal distance of 5.80 m apart. (a) how much is the wavelength? (b) find the period of the wave. (c) how fast are the waves traveling? (d) what is the amplitude a of each wave?

Question part points submissions used suppose that 2 j of work is needed to stretch a spring from its natural length of 26 cm to a length of 36 cm. (a) how much work is needed to stretch the spring from 28 cm to 32 cm? (round your answer to two decimal places.)

How does the electric potential energy between two charged particles change if one particle is reduced by a factor of 3? a. increased by a factor of 3 b. it is decreased by a factor of 9 c. it is reduced by a factor of 3 d. it is increased by a factor of 9