A green light has a wavelength of 485 nm.

What is its frequency? (1 nanometer is 10-9 m)

Scientists are using gene therapy to manage a. deforestation. c. cystic fibrosis. b. population growth. d. measles.

The relative density of oak wood is 0.64. find the density in the cgs system

Do all metals expand the same amount when heated?

The average speed of a runner who runs 500 m in 96 s is what?

Which of the following examples is most like a non-explosive eruption? Squeezing a ... A: Medium-sized rock B: Sponge soaked in water C: A raw egg D: Water balloon

Which of the following describes the products of a chemical reaction? A. The original materials B. The chemicals on the right side of a chemical equation C. The chemicals on the left side of a chemical equation D. The substances that are changed

What does it mean when we say an atom has decayed?

The first excited state of a particular atom in a gas is 5.2 eV above the ground state. A moving electron collides with one of these atoms, and excites the atom to its first excited state.

How do your teeth work as a wedge?

According to the Big Bang theory timeline, all matter and energy was compressed into a very small volume at an extremely high temperature. a. True b. False