Two eagles fly directly toward one another, the first at 15.0 m/s and the second at 21.0 m/s. both screech, the first one emitting a frequency of 2800 hz and the second one emitting a frequency of 3800 hz. what frequencies (in hz) do they receive if the speed of sound is 330 m/s?

A1200 kg car traveling north at 10 m/s is rear-ended by a 2000 kg truck traveling at 30 m/s. what is the total momentum before and after the collision?

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

The freezing and boiling point of a substance changes as the air pressure around it changes. for example, at a lower air pressure (higher altitude) it is easier for water molecules to escape from liquid into the air. in a high altitude city such as denver, colorado compared to a sea-level city such as houston, texas, water