What is the potential energy of a 3gram penny atop the Empire State Building (381m)

What could be classified as part of an ecosystem but not part of a community

What is the frequency of radiation whose wavelength is 2.40 x 10-5 cm?

What best describes the type of energy provided by the rubber band as it is stratched?

After three half-lives of an isotope, 1 billion (one-eighth) of the original isotope's atoms still remain in a certain amount of this element. How many atoms of the daughter product would you expect to be present?

A 0.450-kg soccer ball has a kinetic energy of 119 J. What is the velocity of the soccer ball?

If a train is slowing down, it is accleration? better word for isn't

The limestone cave was formed by the action of underground ...; ... A) earthquakes B) faulting. C) organisms. D) water.

What acceleration does a 9 N force produce in a 3 kg object? Make sure to show your work. (The 4 steps)

What type of mixture is Skittles candy?

What is the relationship between a planet's position in the solar system and the length of that planet's year?