What element is used for lightbulb

Refer back to your data. List all indicators of chemical change that you observed.

A radioactive isotope has a half-life of ten days. how much of a 100 gram sample will be left after 20 days

through which of the following mediums is the velocity of a soundwave the greatest? steel water lead air

31. Newton's 3rd law is for every action, there is an equal and opposite reaction. True b. False a.

Static electricity is an excess of neutrons. A True B. False

Evaluate the following statements about an elephant and a feather falling through air reaching terminal velocity. Select all that are True. The feather experiences more air resistance than the elephant and thus reaches a smaller terminal velocity.

When matter is transformed from a liquid state to the gas state the distance between the particals. and fhe attractive forces between the particals

Explain the difference between speed and velocity

A traditional unit of length in Japan is the ken (1 ken = 1.97 m). What is the volume of a cylindrical water tank of height 5.67 kens and radius 5.59 kens in (a) cubic kens and (b) cubic meters?

The molecular shape of a biological molecule is important because