2. From the figure below, calculate the rate of increase (%) of global energy consumption in the year 2009 from the year of 1980. World 14000 12 000 10000 8000 6000 4000 2000 0 1971 World total primary energy supply from 1971 to 2009 by fuel (Mtoe) 1975 Coal/peat Hydro 1980 1985 1990 1995 2000 Oil Biofuels and waste Natural gas 2005 2009 Nuclear Other*

Applications and Investigations in Earth Science (9th Edition)
9th Edition
ISBN:9780134746241
Author:Edward J. Tarbuck, Frederick K. Lutgens, Dennis G. Tasa
Publisher:Edward J. Tarbuck, Frederick K. Lutgens, Dennis G. Tasa
Chapter1: The Study Of Minerals
Section: Chapter Questions
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1. How much electricity (in kWh) a pump will use for a month?
Assumptions:
-
The power of the pump is 10 kW.
It will be used 10 hours every day.
Please show your calculation step by step.
Transcribed Image Text:1. How much electricity (in kWh) a pump will use for a month? Assumptions: - The power of the pump is 10 kW. It will be used 10 hours every day. Please show your calculation step by step.
2. From the figure below, calculate the rate of increase (%) of global energy consumption in the
year 2009 from the year of 1980.
World
14000
12 000
10000
8000
6000
4000
2000
1971
World total primary energy supply from 1971 to 2009
by fuel (Mtoe)
1975
Coal/peat
Hydro
1980
1985
1990
1995
2000
Oil
Biofuels and waste
Natural gas
2005
2009
Nuclear
Other*
Transcribed Image Text:2. From the figure below, calculate the rate of increase (%) of global energy consumption in the year 2009 from the year of 1980. World 14000 12 000 10000 8000 6000 4000 2000 1971 World total primary energy supply from 1971 to 2009 by fuel (Mtoe) 1975 Coal/peat Hydro 1980 1985 1990 1995 2000 Oil Biofuels and waste Natural gas 2005 2009 Nuclear Other*
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