To a stationary observer, a man jogs east at 2.5 m/s and a woman jogs west at 1.5 m/s. from the woman's frame of reference, what is the man's velocity?

A disturbance sends ripples across water in a tub. These ripples are an example of a rarefaction

Describe how astronomers determine the composition of a star.

If the mass of the counterweight increases by adding more mass, how does the force required to lift the counterweight change?

Something that accurately describe atoms

What happens when the data in an experiment does not support the hypothesis?

During summer vacation, Juan traveled a total distance of 400 miles. His trip took 8 hours. What was the average speed during his trip?

Where Pabs is absolute pressurePg, is gauge pressure, and Patm is atmospheric pressure. For example, if your tire gauge reads 34 lb/incz (pounds per square inch), then the absolute pressure is ...

The tip of a triangle is held 12.0 cm above the surface of a flat pool of water. A submerged swimmer in the pool sees the tip of the triangle at what distance above the water? Let the indices of refraction nwater = 1.33 and nair = 1.00.

What is a lever used for?

What did the romans build as a step toward environment management