What two characteristics are used to classify air masses

Which part of an atom is gained, lost, or shared during a chemical reaction? Electron Proton Neutron Nucleus

2 cycleists, 90 miles apart starting riding toward each other at some times one cycles twice as fast as the other if they meet 2 hrs later at what average speed is each cyclist traveling

Chromatic aberration affected: a. spectrographs b. radio telescopes c. refracting telescopes d. reflecting telescopes

A 10 Hz infrared wave propagates at 1500 m/s in the sea. What is the wavelength?

Water waves crash in on the beach at a velocity of 3.5 m s. If the distance between the crest of each wave is 4 m, determine the frequency of the water waves. V = fλ. A) 0.88 Hz B) 7.0 Hz C) 14.0 Hz

Two firefighters are fighting a fire with identical water hoses and nozzles, except that one is holding the hose straight so that the water leaves the nozzle in the same direction it comes, while the other holds it backward so that the water makes a

What is the relationship between the mass of the counterweight and the amount of work done on the projectile?

The steps in the formation of sedimentary rocks are listed below in an incorrect order. 1. Rocks are weathered. 2. The sediments are compacted together. 3. They are deposited in layers. 4. Small pieces of rocks are carried by water.

Which method would you use to find the volume of an irregular shaped object?

A step up transformer has a primary coil with 100 turns and a secondary coil with 25 turns if the input voltage in the primary coil is 40 volts what is the output voltage reduced to in the secondary coil A) 20 volts B) 35 volts C) 4 volts D) 10