a microwave oven has a power requirement of 1500w a frozen dinner requires 6.0 min to...
a microwave oven has a power requirement of 1500w a frozen dinner requires 6.0 min to heat on full power how much electrical energy is used in kWh to prepare a frozen dinner
Homework Answers
(a) The electric energy used will be = Power x time = (1500 W)* (6/60 h) = 150 W h = 0.150 kWh
Add Answer to:
a microwave oven has a power requirement of 1500w a frozen
dinner requires 6.0 min to...
Die gnt of 425 nm. 2. A typical microwave oven uses radiation of wavelength 12.2 cm...
Die gnt of 425 nm. 2. A typical microwave oven uses radiation of wavelength 12.2 cm a. How many moles of photons of this radiation are required to raise the temperature of 500.0 mL of water from 25°C to its boiling point? b. A watt (W) is a unit of power the rate at which energy is delivered or consumed (Power (W) = Energy (J)/time (s) or 1 W= 1 J/s. If all the energy of a 700-W microwave oven...
Section I: First Order Systems 1) A microwave oven is used to heat a cylindrical glass...
Section I: First Order Systems 1) A microwave oven is used to heat a cylindrical glass beaker completely full of water. The magnetron tube generates 800 watts of thermal power, all of which is absorbed by the water. The glass beaker sits on a thermally insulated plate. As the microwaves increase the temperature of the water, the beaker temperature will also increase due to conduction and convection from the Mode Stirrer Wave Guide Magnetron Tube (source of radiation) Oven Cavity...
(13%) Problem 4: Suppose a microwave oven has a power output of 0.85 kW at a...
(13%) Problem 4: Suppose a microwave oven has a power output of 0.85 kW at a frequency of 2560 MHz. atus us D à How many photons are emitted per second by the antenna of the mi crowave oven?
#10: A heat pump requires 430 W of electrical power to deliver heat to your house...
#10: A heat pump requires 430 W of electrical power to deliver heat to your house at a rate of 2390 J per second. How many joules of energy are extracted from the cold air outside each second? #11: The coefficient of performance for a heat pump is defined as the ratio of the heat delivered to the warmer system to the work required. If a heat pump requires an input of 360 W of electrical energy and has a...
A nuclear power plant has an electrical power output of 1000 MW and operates with an...
A nuclear power plant has an electrical power output of 1000 MW and operates with an efficiency of 33%. If the excess energy is carried away from the plant by a river with a flow rate of 1.4e6 kg/s, what is the rise in temperature of the flowing water? Hint: Consider the flow of energy during one second. During that second, the power plant does 1000 MJ of work ?. Knowing the work and the efficiency, you can calculate the...
Consider a nuclear power plant that produces 1200 MW of power and has a conversion efficiency...
Consider a nuclear power plant that produces 1200 MW of power and has a conversion efficiency of 34 percent (that is, for each unit of fuel energy used, the plant produces 0.34 units of electrical energy. Assuming continuous operation, determine the amount of nuclear fuel consumed by the plant per year. Hint: You will have to find out how much energy nuclear fuel produces. Cite your source of information
. A typical commercial wind turbine costs approximately $2 million per MW of installed power and...
. A typical commercial wind turbine costs approximately $2 million per MW of installed power and requires 5.76 TJ per million dollars of energy to manufacture the wind turbine. (a) Calculate the amount of energy that is consumed (i.e. energy invested) in the manufacture ofa 1.5 MW wind turbine, assuming that turbine manufacture requires 5.76 TJ per million dollars spent. (TJ Tera-joules 1012 joules) (b) If the wind turbine has blades that are 40 meters (radius) long and the average...
1- Capacitor B has half of the capacitor A. Compare the load of capacitor A with...
1- Capacitor B has half of the capacitor A. Compare the load of capacitor A with capacitor B charge when the two capacitors remain connected in series with a battery for a long time. 2- A capacitor immersed in the air has capacitance equal to 12.5 μF when the potential difference at its terminals is 24.0V. If we insert a constant material dielectric equal to 3.75 between the capacitor plates, filling the space between them completely, (a) how much energy...
2. The electric vehicle Tesla Model S has a drag coefficient of 0.24, a mass of 2100 kg, and a frontal area of 2.4 m2....
2. The electric vehicle Tesla Model S has a drag coefficient of 0.24, a mass of 2100 kg, and a frontal area of 2.4 m2. The coefficient of rolling resistance of its tires is 0.01. Recall the density of air at sea level is 1.3 kg/m3. How much kinetic energy is required to overcome rolling resistance and air resistance (drag) at Autobahn speeds of 180 km/hr for a 200 km trip? How much useful energy (in MJ) and money (in...
Chose the correct answer(s) from the multiple choice lists below 1. Exergy of a system is a) b) always increasing e) guided by the first and second laws of thermodynamics for reversible proce...
Chose the correct answer(s) from the multiple choice lists below 1. Exergy of a system is a) b) always increasing e) guided by the first and second laws of thermodynamics for reversible processes only Un d) limited by the second law of thermodynamics for all processes. processes, it is destroyed partly or completely). e) equal to the Gibs free energy of the system. 211two electrodes, one made of u (E.-3.06 V) and another made of Cu ΟΕ.+034V placed in an...
Die gnt of 425 nm. 2. A typical microwave oven uses radiation of wavelength 12.2 cm a. How many moles of photons of this radiation are required to raise the temperature of 500.0 mL of water from 25°C to its boiling point? b. A watt (W) is a unit of power the rate at which energy is delivered or consumed (Power (W) = Energy (J)/time (s) or 1 W= 1 J/s. If all the energy of a 700-W microwave oven...
Section I: First Order Systems 1) A microwave oven is used to heat a cylindrical glass beaker completely full of water. The magnetron tube generates 800 watts of thermal power, all of which is absorbed by the water. The glass beaker sits on a thermally insulated plate. As the microwaves increase the temperature of the water, the beaker temperature will also increase due to conduction and convection from the Mode Stirrer Wave Guide Magnetron Tube (source of radiation) Oven Cavity...
(13%) Problem 4: Suppose a microwave oven has a power output of 0.85 kW at a frequency of 2560 MHz. atus us D à How many photons are emitted per second by the antenna of the mi crowave oven?
Consider a nuclear power plant that produces 1200 MW of power and has a conversion efficiency of 34 percent (that is, for each unit of fuel energy used, the plant produces 0.34 units of electrical energy. Assuming continuous operation, determine the amount of nuclear fuel consumed by the plant per year. Hint: You will have to find out how much energy nuclear fuel produces. Cite your source of information
. A typical commercial wind turbine costs approximately $2 million per MW of installed power and requires 5.76 TJ per million dollars of energy to manufacture the wind turbine. (a) Calculate the amount of energy that is consumed (i.e. energy invested) in the manufacture ofa 1.5 MW wind turbine, assuming that turbine manufacture requires 5.76 TJ per million dollars spent. (TJ Tera-joules 1012 joules) (b) If the wind turbine has blades that are 40 meters (radius) long and the average...
2. The electric vehicle Tesla Model S has a drag coefficient of 0.24, a mass of 2100 kg, and a frontal area of 2.4 m2. The coefficient of rolling resistance of its tires is 0.01. Recall the density of air at sea level is 1.3 kg/m3. How much kinetic energy is required to overcome rolling resistance and air resistance (drag) at Autobahn speeds of 180 km/hr for a 200 km trip? How much useful energy (in MJ) and money (in...
Chose the correct answer(s) from the multiple choice lists below 1. Exergy of a system is a) b) always increasing e) guided by the first and second laws of thermodynamics for reversible processes only Un d) limited by the second law of thermodynamics for all processes. processes, it is destroyed partly or completely). e) equal to the Gibs free energy of the system. 211two electrodes, one made of u (E.-3.06 V) and another made of Cu ΟΕ.+034V placed in an...
Most questions answered within 3 hours.
-
Buckminsterfullerene has the molecular formula C60. What mass of
carbon dioxide would be produced by the...
asked 29 seconds ago -
b. Caspian Sea Drinks is considering buying the J-Mix 2000. It
will allow them to make...
asked 1 minute from now -
Create a BASS MODEL, based on this info: Brand new product
(Sales in 2018 = 0)...
asked 2 minutes ago -
A chair of weight 150 N lies atop a horizontal floor; the floor
is not frictionless....
asked 35 minutes ago -
David Corp. sold machinery for $80,000 on December 31, 2018.
This machinery was purchased on January...
asked 1 hour ago -
Discuss at least five differences between supply chain
partnerships of the past and those that have...
asked 2 hours ago -
"The Ramsey family has total assets of $1,000,000 and total
liabilities of $700,000. Included in their...
asked 3 hours ago -
The following table gives information on the amount of sugar (in
grams) and the calorie count...
asked 4 hours ago -
A car travels at an average speed of 56 mph for 15 hours. What
was the...
asked 5 hours ago -
Exercise on Mirror, Mirror on the Wall/lnitial Self
Evaluation
Write an Initial Self Evaluation paper that...
asked 6 hours ago -
Implementation of policy recommendations is often a
problem. What do you see as the major barriers...
asked 7 hours ago -
23- The consideration needed to support a contract
must:
a. Flow to the promise AND have...
asked 9 hours ago