Yeah Question 13 of 20 A meteor falls toward Earth's surface. Given that the acceleration due to
gravity is 9.8 m/s2, what is the meteor's potential energy if it has a mass of 10
kg at an altitude of 400 m?
A. 39,200 J
B. 408 J
C. 2J
D. 7,840,000 J

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

you get 2.3=1.21*\frac{a}2 or 4.6=1.21a or a=3.802 (b)

explanation: