Of the following, is the largest mass. of the following, is the largest mass. 2.5 × 10-2 mg 2.5 × 1015 pg 25 kg 2.5 × 1010 ng 2.5 × 109 fg

25kg is the largest mass

Explanation:

Convert all the masses to kg so that the units would be uniform

1mg = 10^-6kg

2.5×10^-2mg = 2.5×10^-2×10^-6 = 2.5×10^-8kg

1pg = 10^-15kg

2.5×10^15pg = 2.5×10^15×10^-15 = 2.5kg

1ng = 10^-12kg

2.5×10^10ng = 2.5×10^10×10^-12 = 0.025kg

1fg = 10^-18kg

2.5×10^9fg = 2.5×10^9×10^-18 = 2.5×10^-9kg

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.)

0.93xc=0.93x3x10^8m/s

2.54cm is 1 inch

360seconds i 1 hr