1. Which of the following shows the correct sequence of energy transformations when listening to the radio?
electrical; kinetic; sound; kinetic; electrical
electrical; sound; kinetic; sound; electrical
sound; electrical; kinetic; electrical; sound
kinetic; sound; electrical; kinetic; electrical
2. The graph shows the sources of electrical energy in the United States. In 2002, the total amount of electrical energy produced in the United States was 38.2 quads. How much was produced using gas?
24.2 quads
53.5 quads
273 quads
5.3 quads
Anyone?
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1. the first one...electrical; kinetic; sound; kinetic; electrical
2. 5.3 quads!!
trust meh!!!!
1. To answer this question, we need to understand the sequence of energy transformations when listening to the radio. First, electrical energy is converted into kinetic energy by the movement of electrons through the wires. This kinetic energy is then transformed into sound energy through the speakers of the radio. So, the correct sequence of energy transformations when listening to the radio is electrical; kinetic; sound.
Therefore, option 1 (electrical; kinetic; sound; kinetic; electrical) is incorrect as it includes an extra step of kinetic energy transformation, and option 4 (kinetic; sound; electrical; kinetic; electrical) is incorrect as it starts with kinetic energy instead of electrical energy.
The correct answer is option 2: electrical; sound; kinetic; sound; electrical.
2. To find out how much electrical energy was produced using gas in 2002, we need to look at the graph mentioned in the question. The graph shows the percentage of electrical energy produced from different sources, but we are given the total amount of electrical energy produced, which is 38.2 quads.
To determine the amount produced using gas, we need to find the corresponding percentage for gas and calculate it as a fraction or percentage of the total. For example, if the graph shows that 40% of the electrical energy is produced using gas, then we would multiply 38.2 quads by 0.40 to find the amount produced using gas.
However, without the specific values or percentages shown in the graph, we cannot determine the exact amount produced using gas. Therefore, we cannot answer the question accurately based on the information provided.