A force of 5.00 N is applied to a spring whose elastic constant is 0.250 N/cm. Its change in length is

20.0 cm
23.5 cm
25.0 cm
30.5 cm
35.0 cm

Which of these describe conduction transfer of heat between two objects that are touching transfer of heat by the actual movement of war matter the process in which energy is imitated by one of the object transmitted through space and absorbed by another a process in which energy is released by the molecules breaking apart

Idon’t quite understand this problem

There are two routes similar in terrain; however, one route has an incline of approximately 28 degrees, and you must decide on which route to take. what is the maximum road grade that your fully loaded ecv can climb?