The SI unit of electrical energy is ____________ a) kilojoule (KJ) b) joules (J) c) watt (W) d) kilowatt (KW)
Q: Power is defined as the energy used divided by the work the work done times the distance of motion…
A: According to question we need to define power .
Q: If a 3500 Watt oven is on for 4 hours, then how many kilowatt-hours (kWh) of energy are used? kWh…
A: Energy is defined as E=Pt Here E is energy, P is power and t is time.
Q: Explain the difference between energy and power. Which unit of energy is used in your electricity…
A:
Q: The graph shows the electrical energy consumption of a typical household over the period of 24 h,…
A: Power: Power can be defined as the time rate of consumption of energy. Mathematically, P=∆E∆t where…
Q: What is the cost of operating a 5.00 W electric clock for a year if the cost of electricity is…
A:
Q: If the typical household uses, on average, 3 kW of electrical power constantly, what would the…
A: Household circuit is using = 3kw-hr per hour. And total hours in month = 24×30 = 720 hours. So,…
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) Compute the electrical energy used by a household whose monthly electrical bill is $30, computed…
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: person used his 15000 W air conditioning unit for 5 h every day during the month of June. How much…
A:
Q: kWh = ___________ a) 3.6 × 106 J b) 3.6 × 105 J c) 0.36 × 106 J d) 0.36 × 105 J
A: A
Q: In a particular city, electrical energy costs $0.13 per kilowatt-hour. (Round your answers, in…
A:
Q: tank contains 303 gallons of oil. This is the equivalent of 4.43×1010 J of energy. How many kWh of…
A: Given that A tank contains 303 gallon of oilThe energy To determine How many KWH of energy does this…
Q: X- The higher the wattage of an appliance, the greater the electrical energy consumption. Y- Energy…
A: wattage measures the consumption of electrical energy. The energy per unit time is known as power…
Q: Which of the following is a correct unit of energy? O kg m/s^2 O kg m^2/s O kg m^2/s^2 kg^2 m/s^2
A: Energy is the same as work. Work = Force × displacement Force = Mass × acceleration
Q: An electric water heater consumes 5.00 kW for 2.00 h per day. What is the cost of running it for one…
A: Given: Power, P = 5 kW time,t = 2 hours Cost = 12 cents / kWh
Q: What is the approximate cost of operating a 65 W light bulb for 3.0 h per day for 1 week, if the…
A: The given values are, P=65 Wthour/day=3.0 h/daytday=1 week=7 daysrate=14 cents/kWh
Q: How INuch does it cost to operate a 25-W soldering iron for 8.0 hours, if energy costs Bz 200/kWh?…
A: Given data: Power (P) = 25 W = 0.025 kW Time (t) = 8.0 hours Energy cost = Bz 200/kWh Required: The…
Q: The work W done when lifting an object varies jointly with the mass m of the object and the square…
A: Answer:- The problem statement suggests that the work W varies jointly with the mass m and the…
Q: In the formula W=F x d the work is measured in joules. What metric units does joules stand for?
A: Given: W = F x d
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: 1. a) A conventional photovoltaic cell delivers 4.0x10a W of electric energy when illuminated with…
A: Output power by cell = 4.0 × 10-3 W Input power = 1.2 × 10-1 W
Q: An Energy Project, 12KW Solar PV is utilized for small factory service with $5,000 per KW. If…
A: Given, Solar PV = 12KW Service/KW = $5000 Electricity cost / year = $4500
Q: It's given the Kinetic energy formula: KE=1/2 mv2 How to solve for v?
A:
Q: An electric water heater consumes 7.13 kW for 3.85 h per day. What is the cost (in dollars per year)…
A: An electric water heater consumes 7.13 kW for 3.85 h per day. In a year, the heater consumes…
Q: A gas-fired turbine generator for production electricity has an efficiency of about 50%. How many…
A: Efficiency is: η=WQ W is heat output Q is heat given to the system. Amount of heat required…
Q: A computer uses 1.62 x 10^4 J in one hour. What is the power used?
A: The energy usage of device is 1.62 ×104J in one hour. Power is the rate with respect to time at…
Q: Q1. 1 Jis the energy required to doof work. O 1N O 1J O 9.8 N O 98 J
A: From Energy conservation: Work Done = Potential Energy
Q: One watt is equal to __________ a) one kilowatt per second b) one kilo joule per second c) one…
A: C
Q: this is a 23 watt energy efficient light bulb (1bulb) which cost 6.00.the retail price of…
A: The energy consumed by a device is given by E = P×t, where P = the power of the device t = time
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) 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: 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: An electric water heater consumes 4.88 kW for 3.85 h per day. What is the cost (in dollars per year)…
A: In one day number of kWh used, 4.88×3.85=18.788 kWh
Q: How LONG DOES IT TAKE for a 75 Watt light bulb to burn out if it can 4 p perform 600,0dO J of work…
A:
Q: A clothes dryer uses 3000 W and is run fro 1 hour. If the total useful energy to dry the clothes is…
A: Given: Power of the dryer P= 3000 W time to use dryer = 1 hour Total useful energy to dry the…
Q: Approximately, how much energy is transferred from one living thing to the next? 5%…
A: To discuss amount of energy transferred from one living thing to the next.
Q: Which of the following statements best describes "energy" as defined in physics? a) Energy is the…
A: Energy as defined in physics.
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: 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: 8. Which device is designed to convert chemical energy into kinetic energy? a car engine a…
A: Conservation of energy is the phenomenon in which one form of energy is converted into another form…
Q: Which is not a unit of energy? what is the answer? a) Newton b) Joules c) Ergs d)…
A: Introduction: The energy of the object is defined as the capacity of doing work, and the unit of the…
Q: In the figure shown, if the mass (m=7 Kg) is moving with constant speed and traveled a distance d=10…
A:
Q: How much work (in J) is needed to move a proton by 2 cm with a 10000 N of electric force
A: Given : Force F = 10000 N Displacement d = 2 cm = 0.02 m
The SI unit of electrical energy is ____________
a) kilojoule (KJ)
b) joules (J)
c) watt (W)
d) kilowatt (KW)
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