Aproton carries positive charge, and weights the same as an electron.
a. true
b. false

False

Explanation:

The charge on an electron as well as proton is same. The difference between electron and proton is that the electrons have a negative charge while the protons have positive charge.

The weight of an electron is, while the weight of a proton is .

Therefore, the given statement "A proton carries positive charge, and weights the same as an electron." is false.

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.)