A hair dryer uses 1200 watts of power. Current flow through the dryer is 10 amperes. At what potential difference does the hair dryer operate

a displacement distance is size of displ

i had this question and the answer was 3.15 miles.

martina travels from school to her mom's office. from there, she walks to school. after school, she walks to the library and then to a friends house before finally ending back at home. find martina's total distance traveled.

a) 0 miles  

b) 0.4 miles  

c) 1 mile  

d) 3.15 miles