(i) a pendulum has a period of 1.85 s on earth. what is its period on mars, where the acceleration of gravity is about 0.37 that on earth?

Explanation:

given,

Time period of pendulum on earth = 1.85 s

acceleration of gravity of mars about that of earth = 0.37

Time period of mars = ?

using equation of time period

now,

time period of mars

..........(1)

time period of earth

..........(2)

dividing equation (2)/ (1)

Time period of pendulum on mars is equal to  3.04 s

conduction, convection, radiation

the total distance that martina travels that day is

(distance from home to mom's office) plus (distance from mom's office to school)

plus (distance from school to library) plus (distance from library to friend's house)

plus (distance from friend's house to martina's house).

(we don't know what any of these distance actually is.)