A recent home energy bill indicates that a household used 385 kWh (kilowatt-hour) of electrical energy and 125 therms for gas heating and cooking in a period of 1 month. Given that 1.00 therm is equal to 29.3 kWh, how many milligrams of mass would need to be converted directly to energy each month to meet the energy needs for the home? Answer in mg.
So we have to convert all given energy in to mass.
So we can apply E=mc2.
We have to convert all energy in joule as follows
385 kWh x 3600 sec/hr * 1000 W/kW = 1.39 x 109 J
125 therm x 29.3 kWh x 3600 x 1000 = 1.32 x 1010 J
Total energy = 1.46 x 1010 J
E = m x c2
1.46 x 1010 J = m x (3.0 x
108)2
m = 1.6 x 10-7 kg
So m = 0.16 mg
A recent home energy bill indicates that a household used 385 kWh (kilowatt-hour) of electrical energy...
A recent home energy bill indicates that a household used 335 kWh (kilowatt‑hour) of electrical energy and 125 therms for gas heating and cooking in a period of 1 month. Given that 1.00 therm is equal to 29.3 kWh, how many milligrams of mass would need to be converted directly to energy each month to meet the energy needs for the home?
A recent home energy bill indicates that a household used 345 kWh (kilowatt-hour) of electrical energy and 165 therms for gas heating and cooking in a period of 1 month. Given that 1.00 therm is equal to 29.3 kWh, how many milligrams of mass would need to be converted directly to energy each month to meet the energy needs for the home?
25 pts Household Energy Consumption and Electric Bill How Energy Is Used in Homes (2009) In 2009-2017, the average annual electricity consumption for a U.S. residential utility customer was 10.766 kilowatthours (kWh), an average of 897 kWh per month Req. For the month of June (30 days with 24hr/day) Determine i) the total hours i) Kilowatts/month of June. il) Electric bill based on a charge of $0.085/kwh(-0.079kwh electricity +0.06 transmission). $ iv) Assuming the home has an electric water heater,...