If one afternoon mike gauthier decides to dig a hole through the earth to china for a game of ping pong, how many centuries would elapse before he got there if he dug at a rate of 0.400 miles depth per day and the diameter of the earth is 1.2700 e 7 m?

0.54 centuries

Diameter of the Earth

The rate at which it is digged

The number of centuries it would take to dig =Distance to be digged/ rate at which it is digged.

Distance to be digged = diameter of the Earth (because 1 m=0.00062 miles)

Number of days it would take to dig

Therefore, it would take 0.54 centuries to dig through to China.

0.11 m/s and 0.28 m/s should be correct

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