Explain how the surfaces of an object interact with one another to create a frictionless surface.

the electric field is a “force field” around a charged object that illustrates the direction the electric force would push an imaginary 

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

continuous conducting path for current, power supply

the maxium height is 34m/s