A family of five is planning to install solar panels on the roof of their home to help reduce the cost of electricity and save energy to help the environment. The family plans to install 10 panels, each with a power rating 600W. On average, a solar panel can produce electricityfor 4.5 hours daily. How much solar energy will the solar panels transform into electrical energy each day?

Q: The lowest point in Death Valley is 85 m below sea level. The summit of nearby Mt. Whitney has an…

A: U = mghwhere m = Mass of objectg = Acceleration due to gravityh = AltitudePotential energy at an…

Q: Mark and Sam bought a brand new blender to make their favorite slush this summer season. This 2.75…

A: Mark and Sam bought a brand new blender to make their favorite slush this summer season. This 2.75…

Q: How much power is provided by a motor if it does 27 J of work in 3.0 seconds?

A: Work = W = 27 J Time = t = 3 s Power is defined as the work done per unit time. The mathematical…

Q: Four light bulbs, rated at 100 W, 75 W, 50 W and 25 W each, are in parallel. What is the total power…

A: Given Data, Power of the four bulbs are = 100 W, 75 W, 50 W, 25 W

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: Assuming that the diet of an average Canadian consists of 2,000 food calories per day (1 food…

A: Given data :- diet of an average person Canadian = 2,000 food calories per day 1 food cal = 4200 J…

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

A:

Q: e energy cost per onth for operating 15- fluorescent lamp (40 Watts) for 150 hours ea nditioning…

A: Cost of 1 kWh = P 7.00

Q: An average-sized home refrigeration unit has a 1/19−hp fan motor for blowing air over the inside…

A:

Q: energy costs

A:

Q: An airplane weighing 20,567.2 lbf at ground is flying at an altitude of 31,781.33 ft at 531…

A:

Q: A new coal-burning power plant can generate 1:5 gigawatts (billion watts) of power. Burning 1…

A: Given data: Energy generate = 1.5 GW Need to determine the energy generate in one month.

Q: State the law of conservation of energy (COE). On what conditions can we apply COE?

A: The law of conservation of energy states that the total energy of an isolated system remains…

Q: How much work can a 120 W motor do in 3.0 seconds? (120 W is the power of the motor.) Your answer: O…

A:

Q: 3) How much energy does a 100-W light bulb use in 8.0 hours?

A: we use the concept of                                       1000W = 1 unit…

Q: A young girl had been eating too much chocolate. How much work must she do to offset the 300…

A: Law of conservation of energy: According to this law " the energy cannot be created or destroyed it…

Q: How much energy does a 7kg box have if it is at a height of 5m? O 233 J O 123 J O 343 J O 453 J

A: Given Data: The mass of box is m = 7 kg. The height of box is h = 5 m. When a body is placed above…

Q: Suppose that your refrigerator consumes 150 W of power. If the cost of electricity is $0.15 per…

A:

Q: What is the average power consumption in watts of an appliance that uses 8.18 kW · h of energy per…

A: The average power consumption is given by Where E = Total energy used, t = total time taken

Q: A bodybuilder lifts a 150 kg barbell to a height of 3.0 m.  What is the work done by the bodybuilder…

A: The potential energy is given by  U = m g h  where, m is the mass,  g is the gravity and h is the…

Q: 6. A 2,500 kg airplane can accelerate on the runway from rest to 250 mph in 15 seconds. What is the…

A:

Q: A wind turbine is set up in a farming field, the wind speed vis 5.2 m/s. Assume that the available…

A: We are given wind turbine. We are given density. We are given radius also. We are given efficiency.…

Q: 12.. Buying electricity Here is an extract from our electricity bill, The coloured text has been…

A:

Q: Chichay uses the washing machine which consumes energy at 300 Watts at normal washing speed. How…

A: Given(s): Power of the machine, P=300 W=0.30 kW It runs for, t=80 min=8060h=43 h Cost of…

Q: the

A: Given:- Source energy in philippines.

Q: 7. An electric motor with an efficiency of 80% has a power output of 4.00 horsepower. The power…

A: Given, Output power = 4 horsepower. Efficiency = 80% Motor runs for = 3 hour Charges = $0.15 per kWH…

Q: List some loads that you use in your household and identify the form of output energy.

A: LOAD- A load is an electrical instrument that consumes electrical power.

Q: You are renting a car to take a road trip from Ottawa to Halifax, about 1400 km. The car rental…

A:

Q: A certain handcrank generates power at 75W. How long will it need to be run to fully charge a…

A: Power: The energy per unit time is known as power. Power = Energy/time

Q: (a) What is the average power consumption in watts of an appliance that uses 5.93 kW · h of energy…

A: The energy consumed by any electrical appliance in a given time period is given by following…

Q: You run a washing machine (512 W) and an electric clothes dryer (5000 W) for 1.5 h each daily. (a)…

A:

Q: Calculate the number of kilowatt-hours (kW-hrs) consumed in a week by an 850- Watt window air…

A: Given,Power of Air conditioner =850 Watt

Q: A 100-W light bulb is left on for 10.0 hours. Over this period of time, how much energy was used by…

A: Given that,Power of bulb,P=100 wattTime for which bulb is left turn on, t=10 hours=10×3600 sec=36000…

Q: How much energy does a 100-W light bulb use in 80.0 hours? O 13 kWh O 800 kWh O 8.0 kWh 0.80 kWh

A: Given data:  Power (P) = 100 W Time (t) = 80.0 h Required: Energy (E)

Q: list 25 ways that you can personally save energy.

A: 25 ways that you can save energy,Turn off appliances when you do not need them-they to produce more…

Q: If you have an average of 6.5 hours of online class per day for 204 days of school per year, how…

A: Given: The power consumed by the laptop is 90 W. The time is 6.5 hr for 204 days. The rate of cost…

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: A 1200 W toaster takes one minute to toast a slice of bread. At 7.0 cents/(kW-h), how much does the…

A: Have a look dear

Q: You place an ice cube in a microwave oven. If it requires 32,165 J to melt the ice cube and the oven…

A: Given data:  Energy (E) = 32,165 J Power (P) = 98 W Required: Time in minutes

Q: How many tonnes of wood per day would be needed for a wood-fired generating station that produces…

A: Given data: Energy produced by burning wood P=1000 MW. Efficiency η=35%. Therefore, total energy…

Electric Charges and Fields

One of the fundamental properties is the electromagnetic property. Charge cannot be destroyed by any process and this contributes formally to the law of charge conservation.