You are standing on the sidewalk and see a bus drive by. What would be an ideal frame of reference?

A bird flying overhead

A jogger running along the sidewalk

A car driving alongside the bus

A tree across the street

If two people standing on a scooter board push off of each other what happens (Newton's 3rd law)

Which bird on the wire, the one with a mass of 50g or the one with a mass of 60g, has the most potential energy?

Researchers want to see if college students are more committed to their fraternity after going through a hazardous hazing ritual. What is the dependent variable?

The blue end of the visible color spectrum has wavelengths, and the red end has wavelengths.

What is Precambrian time?

What makes the lumbar vertebrae different from the cervical vertebrae and the thoracic vertebrae?

Matter has Certain types of what

Identify the type of relationship that exists between density and temperature

You are standing on the sidewalk and see a bus drive by. What would be an ideal frame of reference? A bird flying overhead A jogger running along the sidewalk A car driving alongside the bus A tree across the street

One isotope of sodium has 11 protons and 7 neutrons. What is the mass number of this isotope?