A sample of plutonium-239 decays to one-eighth of its original amount after 7.236 x 104 years. What is its half-life?

You are creating a carbon cycle poster. What could you include in the poster to demonstrate the cycling of carbon? A) a rock falling B) shells fossilizing C) an eagle breathing D) the sun shining

The wavelength of a wave in some medium is reduced, what happens to the period? The velocity? The amplitude? The frequency?

Which of these is an environment effect of deforestation and farming A. Loss of habitat B. Smog C. Use of large amounts of water D. Poisoning wildlife

Riddle: what do you have when you snap your fingers Twice every second

What determines the atomic mass of an element? A. the sum of the protons and electrons B. the sum of the ions and isotopes C. the sum of the protons and the neutrons D. the sum of the neutrons and the electrons

Why do we use average force while solving momentum problems? How is net force related to the momentum of the object?

If you had a positive 8 score on the sit-an-reach test you

65 million years ago there was a mass extinction that is best known for killing the dinosaurs. There was also a large deposit of dust that contained substances only found in asteroids.

Near which location in New York State would a geologist have the greatest chance of finding dinosaur footprints in the surface bedrock?

E=mc^2 solve for c E/m m/E sqrt (E/m) sqrt (m/E) E - m sqrt (E-m)