A uniform ladder whose length is 4.4 m and whose weight is 490 N leans against a frictionless vertical wall. The coefficient of static friction between the level ground and the foot of the ladder is 0.49. What is the greatest distance the foot of the ladder can be placed from the base of the wall without the ladder immediately slipping?

Which object is most likely represented by a dot?

Place me with this question is my last question

Why is rain likely when warm, moisture-laden air meets cold air? a) the lighter warm air will rise and cool down, causing condensation and rain. b) the cold air moves faster and pushes the warm air away, causing condensation and rain. c) the moisture in the warm air condenses on contact with the cold air, causing rain to fall. d) the cold air mixes with the warm air, reducing its temperature causing moisture to condense.