A river flows due east at 2.20 m/s. A boat crosses the river froro the south shore to the north shore at a speed of 13.0 m/s due north relative to the water. What is the velocity of the boat as viewed by an observer on the shore?

If the speed of a particle triples ,by what factor does its kinetic energy increase?

What makes thermal imaging cameras useful? they can detect differences in color. they can detect differences in wave speeds. they can detect differences in temperature. they can detect mechanical waves.

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.