Could someone help me out with this? Its pretty confusing

For all machines-not just hammers- the user applies force force to the machine to the machine over a certain distance. question 1 options: input output duo none of the above

Imagine a 28-year-old man named keith is about to be released from prison after serving a seven year sentence. keith is not sure where to start when he gets out. the lease on his apartment and his job are both long gone. he has no immediate family to get him a hand, he will be completely on his own. what types of things do you think he might need with once he is released?

An individual who is highly motivated to improve his or her economic and social standing would likely feel most frustrated in what kind of system? a. caste b bourgeoisie c.class d. patrilineal