In which of the following ways is a puffin dependent upon salmon? question 4 options: puffins have a commensalistic relationship with salmon. puffins have a parasite-host relationship with salmon. puffins have a mutualistic relationship with salmon. puffins have a predator-prey relationship with salmon.

You have been called to testify as an expert witness in a trial involving a head-on collision. car a weighs 1515 lb and was traveling eastward. car b weighs 1125 lb and was traveling westward at 44.0 mph. the cars locked bumpers and slid eastward with their wheels locked for 22.5 ft before stopping. you have measured the coefficient of kinetic friction between the tires and the pavement to be 0.750 . how fast (in miles per hour) was car a traveling just before the collision? (this problem uses english units because they would be used in a u. s. legal proceeding.)

What is the final velocity of the initial velocity of 25 and -50?

What is the role of lenses in microscopy?