Recent content by kellyb1ll

A man in search of his dog drives first 12.7 mi northeast, then 17.7 mi straight south, and finally 7.97 mi in a direction 30.3° north of west. a) What is the magnitude of his resultant displacement? okay so i won't explain everything i did but I am pretty sure i got the right numbers...

its a problem on my online homework and when i type in that answer it says its wrong

A solid lies between planes perpendicular to the x-axis at x=-a and x=a for values of a>0 to be given below in parts (i) and (ii). In each case the cross-sections perpendicular to the x-axis between these planes run from the semicircle y=√(a^2-x^2) to the semicircle y=-√(a^2-x^2). If...