What will be evidence of a galaxy moving toward earth?
a. the galaxy has a loose, disorganized appearance
b. the stars in the galaxy appear to twinkle .
c. the galaxy appers to be acceleratin.
d. the light wavelenghths coming from the galaxy are becoming shorter

Which statement correctly describes a step-up transformer? a. it increases the amount of electric energy available. b. it increases the voltage of an electric current. c. it changes direct current into alternating current. d. it has more loops of wire in its primary coil.

Could someone . i have tried to solve myself but my calculation is off

Write the function getkthdigit(n, k) that takes a possibly-negative int n and a non-negative int k, and returns the kth digit of n, starting from 0, counting from the right