What does the left y-axis show?
a- sea surface temperature anomaly, in degrees celsius
b- sea surface temperature anomaly, in degrees fahrenheit
c- time, in four-year intervals
d- incidence of cholera, as a percentage of the normal rate
e- sea surface temperature, in degrees celsius

An object in mechanical equilibrium is an object

Awave that is traveling fast can be said to have a high a. frequency b. speed c. wavelength d. amplitude e. period f. none of these

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?