Americans use more of every energy source than they did 65 years ago, but usage patterns have varied. Since 1950, which energy source has grown the most, in percentage terms?

Q: About how many cups of coffee you make with 569,600 J of energy

A: It depends on room temperature, let room temperature is 22 degree celsius. H=mc∆T Where c specific…

Q: A large hoist is lifting a 2000 kg automobile. There is a gauge on the hoist that displays its power…

A: Explanation and solution shown in the picture below ?

Q: A microwave oven has a power requirement of 1,248 W. A frozen dinner requires 5.0 min to heat on…

A: Given: The power required to microwave is 1248 W. The time required to heat the frozen dinner is 5.0…

Q: A microwave oven has a power requirement of 1,251 W. A frozen dinner requires 6.8 min to heat on…

A: (a) Energy used in kWh

Q: According to the World Energy Council, the average household in Mexico consumes about 1600 kWh of…

A: Dimension of solar panels=(1×1)  So area of solar panel=1 m^2 Annual solar energy potential of panel…

Q: Suppose a person eats 2000 Kcal per day. Using the facts that 1 Kcal is approximately 4.2 Kj (a…

A: Joule is unit of energy or work. And Watt is the unit of power, which is energy per unit time. So,…

Q: Electric utility companies generally say that a community with 65,000 homes needs to be served by a…

A:

Q: A microwave oven has a power requirement of 1,255 W. A frozen dinner requires 4.2 min to heat on…

A: Given,

Q: A bakery has a 6,100W oven that runs every day from 5am until 7pm making tasty pastries for the…

A: Given: Power of bakery = 6100 W = 6.1 KW The time of bakery runs per day = 5 am to 7 pm = 14 hours…

Q: ten countries during 2011. (a) Based on the data in the graph, identify one of the fuel sources…

A: A)  From the graph , it is being proved that fossil fuel source has  highest contribution to the…

Q: A microwave oven has a power requirement of 1,263 W. A frozen dinner requires 5.8 min to heat on…

A: Given data:Power requirement of microwave oven, P = 1263 W = 1.263 kWTime, t = 5.8 min = 5.8 / 60 =…

Q: Suppose a man does 35.5 kJ of work with an efficiency of 4.95 % a. How much food energy, in…

A: Work done is Efficiency is Note:Find:Food energy.

Q: A small space heater uses 1,212 Watts of power. What does it cost in dollars to use the heater for…

A: Given: The power is 1212 W. The number of the days is 30 days. The run time of the heater is 14.7 h…

Q: A high jumper of mass 60kg consumes a meal of 3.00 x 10³ kcal prior to a jump. If 3.3% of the energy…

A: Write the given values with the suitable variables. m=60 kgE=3×103 kcal=3×103 kcal×4186 J1…

Q: A microwave oven has a power requirement of 1,243 W. A frozen dinner requires 6.5 min to heat on…

A:

Q: A microwave oven has a power requirement of 1,243 W. A frozen dinner requires 5.6 min to heat on…

A: The energy consumed by the oven can be obtained as E=Pt=1243W×1kW1000W5.6min×1h60min=0.116kWh

Q: 20. How many liters of oil would be needed to supply all of the world's energy needs for one year?

A: Solution:-             Energy released by 1…

Q: An air conditioner uses 10,925 J of energy to run, but only 6,122 J of energy is used to heat or…

A: energy efficiency= output/input   output=6122 J input=10925 J

Q: The installed capacity of geotermal energy in france is 2000 MW. Calculate how many homes can be…

A:

Q: The average electrical consumption of an American residence 1500 kilowatt hours for a single family…

A:

Q: A fuel tank contains 25 × 1010 BTUs of energy. The fuel is converted into electrical energy in the…

A: Given:total energy of the fuel, E = 25×1010 BTU1 BTU = 1055.06 Jhence E = 25×1010×1055.06 J =…

Q: In recent years, there has been a large push for an increase in the use of renewable resources to…

A: i) The mileage of the car, which use gasoline as fuel, is 27.5 mi/gal. ie., using 1 gallon of…

Q: An air conditioner uses 11,260 J of energy to run, but only 6,428 J of energy is used to heat or…

A:

Q: s 1 pound of coal to generate one kWh of electricity. How much coal would an average home use in a…

A: in India average use of electricity per day = 5.7 Kwh / day  1 pound of coal to generate one kWh of…

Q: If the average household in a region consumes about 5,250 kWh of energy per year. In the region, the…

A: Given Avg energy consumption in an year =  5,250 kWh  Avg annual solar energy potential  per year…

Q: If the energy of a mosquito (10−2 g at 0.5 m/s) were used to supply the energy needs of the world,…

A: N = Eworld/ Emusquito

Q: At a nuclear power plant, a steam turbine drives an electrical generator with a mechanical power…

A: Power input is Pin = 1300 MW Power output is Pout = 330 MW

Q: When it rains vapor, water vapor in the air condenses into liquid water, and energy released is…

A: Given that, Length, l = 0.0254 m Area, A = 38750.16 m2 We need to find the amount of release of…

Q: When it rains vapor, water vapor in the air condenses into liquid water, and energy released is…

A: Solution

Q: In Canada, the four primary sources of power generation are fossil fuels, hydroelectricity, wind…

A: As of 2011, The largest source of generation of power in Canada is hydroelectricity that is power…

Q: An engineer measures the capacity of an electricity-generating plant. The capacity is  794MW . What…

A: Answer:-  Given  Capacity or power (P) = 794 MW    We know that    (1 MW = 106 watt)    P = 794 ×…

Q: a 140 b Coal Gas Liquids - Biomass National total 0.0% -3.3% 120 O Non-polluting energy 100…

A: Explanation of figure b , c, e , f