Plzz and explain why you got the answer and i wll mark the first one to answer brainiest! which definitiom best describes pastoralism?

Simple machines can a. increase force only b. decrease force only c. increase or decrease force

Which of the following changes will result in a stronger electromagnet? a. using fewer coils of wire b. using a higher voltage c. using a shorter nail d. using a longer wire

Oxygen undergoes an isentropic expansion from 120 degree c and 280 kpa absolute to 140 kpa absolute. determine the final temperature of the oxygen and the amount of work per kg of o_2 produced in the process if it is adiabatic.