The pie chart alongside represents the consumption of the. U.S.A in 2009 per ... Example 1 : The bar graph given alongside gives the energy consumption per ...
Types of energy There are two types of energy sources : non-renewable and renewable. Fossil fuels - coal, oil and natural gas - are non-renewable sources of energy because they took millions of years to form, under conditions that may never be repeated.
Solar power, wind power and hydroelectricity are renewable energy because they are inexhaustible or naturally replenished on human time scales. All of these can be captured in different ways. The pie chart alongside represents the consumption of the U.S.A in 2009 per type of energy. 1. Which energy source provides the most energy ? 2. What percentage are renewable energy sources ? 3. What percentage are nonrenewable energy sources ? 4. What percentage of the energy sources are fossil fuels ? 5. What percentage of the renewable energy are wind energy sources ? 6. What percentage of the energy sources are wind energy sources ?
II
Energy in homes
Example 1 : The bar graph given alongside gives the energy consumption per home and the repartion by energy sources. 1. What is the energy consumption (in Btu) per home in 1980 and in 2005 ? What is the evolution of the consumption ? 2. What is the energy consumption (in Btu) for appliances and lighting in 1980 and in 2005 ? 3. What is the percentage increase of the concumption for appliances between 1980 and 2005 ? Example 2 : The frequency table for the number of televisions per household in U.S.A is given below. Number of households (1997) (in millions)
Number of households (2009) (in millions)
0
1
2
3
4
5
2.02
31.31
37.37
19.19
8.08
3.03
2.26
23.73
36.16
25.99
14.69
10.17
1. How many housholds have 5 televisions in 1997 and in 2009 ? 2. Calculate the mean in 1997 and in 2009. 3. Construct a relative frequency distribution table. 4. Construct a cumulative relative frequency distribution table. 5. What is the median in 1997 and in 2009 ? 6. What is the connection between the consumption studied previously and the number of televisions ?
(when used with a natural gas water heater). Your cost will depend on your utility rates and use. Cost range based only on standard capacity models. Estimated ...
bottom mounted freezer, and without through-the-door-ice service. · Estimated energy cost based on a national average electricity cost of 12 cents per kWh.
Punti di forza: ⢠Il sistema di tenuta olio con paraoli doppi e labirinto esterno. ⢠L'efficace sistema di sgancio rapido dei coltelli (a richiesta) semplice, affidabile che abbatte drasticamente i tempi di manutenzione;. ⢠I supporti inferiori
Your cost will depend on your utility rates and use. · Cost range based only on models of similar capacity with automatic defrost, side mounted freezer, and ...
Mar 5, 2009 - Chapter 3 ...... Actual and forecast annual oil production in the lower 48 states ...... 7 ... Actual and fitted annual productionâlower 48 states . ...... The likely future path of these production patterns is clearly a matter of int
In which section of the pie chart below do each of the following energy sources belong? • Electricity. • Natural gas. • Oil. • Biomass. • Coal. Source: Website of the ...
sufï¬ciently âtineâ admissions to have no doubt in classical physics. But we can do it ... Tinnitus E. Berrm'crt. USA in hisfomous articic "Fina! seer-er ofï¬ce energyâ.
Since we are about to start comparing these mechanical forms of energy with other ..... physics community by the mid-1800s, based on roots going back even ...
P/N W11223077 Rev. A. 710. Estimated Yearly Electricity Use. kWh. Compare ONLY to other labels with yellow numbers. Labels with yellow numbers are based ...
Models with similar features have automatic defrost, side-mounted freezer,. ⢠Both cost ranges based on models of similar size capacity. â½. $94. $37. $94. $72.
... range based only on upright freezer models of similar capacity with automatic defrost. ... Enlever cette étiquette avant le premier achat au détail constitue une ...
Les actifs flexibles peuvent réagir aux variations de prix sur le marché de l'électricité. Bien gérés, ils vous permettent de générer d'importants revenus ...
Energy Relax est le produit d'électricité qu'il vous faut si vous ... des prix stables et un approvisionnement en électricité simple et ... meilleurs prix du marché.
Estimated energy cost is based on a national average electricity cost of 12 cents per kWh. â½. $40 ... Compare ONLY to other labels with yellow numbers. ftc.gov/ ...
36). Enlever cette étiquette avant le premier achat au détail constitue une violation ... ·Bottom Mounted Freezer. ·With Through-the-Door-Ice Service. Type 5A 5.
production non flexible = production que vous n'êtes pas en mesure d'influencer, c'estàdire issue d'installations photovoltaïques et éoliennes, de petites ...
