Suppose someone joins a group to combat climate change, with…

Suppose someone joins a group to combat climate change, with the goal of drastically reducing carbon emissions.. This person cares the most about the goal of the group, and isn’t in it for friendship, networking, newsletters, or discounts. Which benefit is more closely associated with this person’s membership in the group?

You are pushing a 20 kg box across the floor. Your arms (and…

You are pushing a 20 kg box across the floor. Your arms (and therefore the force you are using) is angled downwards at 20O below horizontal. If the coefficient of friction is 0.2 and the box is accelerating at 1 m/s2 in the direction you are pushing, what is the magnitude of the force you use?