Aheat engine with a thermal efficiency of 45 percent rejects 500 kj/kg of heat. how much heat does it receive

c) up is the direction the magnetic force is acting on the charge.

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