What is light?

1. A wave of vibrating electric and magnetic energy

2. A wave that travels by compressions

3. A wave that travels by rarefractions

4. A state of matter

Which factor is most important in determining climate? A. Longitude B. Latitude C. Rainfall D. Temperature

If an isotope of nitrogen has a mass number of 15 and an atomic number of 7, how many subatomic particles are in the nucleus?

An 800-W heater raises the temperature of 4 kg of soup by 40 °C in 13 minutes. (a) How much energy is transferred to the soup if there is no energy loss to the surroundings?

Based on the data table, find the acceleration and then predict the velocity at the time 3.5 seconds.

What are the three main reservoirs of the oxygen cycle? a. the atmosphere, the water cycle and rocks b. the biosphere, the water cycle and rocks c. the atmosphere, the biosphere and the water cycle d. the atmosphere, the biosphere and rocks

The lighted part of the moon appears to change shape when viewed from the Earth because Question 1 options: Of the shadow cast from the Earth on to the surface of the moon the sun goes out at different times of the month Justin Bieber was having a

Which of the following is least likely to result from seafloor spreading

Through how many volts of potential difference must an electron, initially at rest, be accelerated to achieve a wave length of 0.27nm? A) 4.6 V B) 0.046 V C) 0.27 V D) 4.6 MV E) 4.6 kV

A roller coaster track is a good example of the law of conservation of energy. Use this law to explain these facts about a roller coaster track. a. The largest hill for a roller coaster track is the first hill on the track.

Which statement about the spectrum of light that emerges from a prism is true? A. High-frequency colors bend more than low-frequency colors. B. High-frequency colors bend less than low-frequency colors. C.