Celina has a water sample that's contaminated with salt and microorganisms. Which two methods could she use to purify the water?

The Palo Verde Nuclear Power Plant cost about 6 times as much to build as compared to the Solana solar parabolic trough electicity generating facility. Does Palo Verde provide at least 6 times as much energy as Solana?

A 20kg rock is on the edge of a 100m cliff. what gravitational energy does the rock process relative to the base of the cliff

The SI unit for pressure is pascal (Pa). One hectopascal would equal how many pascals? 0.1 Pa 10 Pa 100 Pa 1000 Pa

A dc motor uses what to move wires A. Differences in electric resistance B. static electricity C. An electromagnetic field D. Flowing protons

Why does paper feel different after it has been wet and dried?

What investigations provide large amounts of information about a wide range of variables.

Why would Sodium (Na) and Chlorine (CI) want to form a lonic Bond? -to achieve a full inner valence shell -to achieve a equal amount of protons & electrons in their nucleus -to achieve an stable amount of protons & neutrons in their nucleus -to

A digital thermometer reads 15 degrees Celsius, what is the uncertainty?

Determine the magnitude of the effective value of g⃗ at a latitude of 60 ∘ on the earth. assume the earth is a rotating sphere.

What characteristic of a planet determines the acceleration due to gravity on it?