Part A: How much work is done when you push a crate horizontally with a 140 N across a 15 m factory floor? Part B : if the force of friction on the crate is steady 70 N, find the KE gained by crate

if a star is moving toward earth, its light waves appear to be squeezed together. hope it

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