A 0.41 kg spike is hammered into a railroad tie. The initial speed of the spike is equal to
1.4 m/s. If the tie and spike together absorb 40.4
percent of the spike’s initial kinetic energy
as internal energy, calculate the increase in
internal energy of the tie and spike.
Answer in units of J.

please and thank you

correct it is c.) b b

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