How much of the sun’s energy actually reaches the earth?  A. 100% B. 25% C. 10% D. Much less than 1%

Q: The heat pump is a agent acting in between hot body and cold body

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Q: .A Velocity .B Acceleration .c Momentum .D None of these

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Q: F D B E C VA 4

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Q: is available in the electric systems and mechanical systems. O liquid air O gas no medium

A: Mechanical system: A set of components which convert a specific input force or motion into a desired…

Q: Controlling the Radiation of Heat.

A: Radiation of heat is defined as a loss through which heat from the system is radiated outside the…

Q: On-grid PV system has two sources of power: utility grid and the sun a. True O b. False

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Q: Select the energy forms that are with respect to some outside reference frame __________

A: Here The various energy forms are given : Internal Energy: Related to the temperature of a system…

Q: Substances with higher specific heats will increase in temperature faster than substances with lower…

A: Specific heat of a substance :  It is defined as  the net quantity of heat required to raise the…

Q: Which of the following gases is the least dense? A.oxygen B.helium C.carbon dioxide D.argon

A: The density of the above gases at standard temperature and pressure are tabulated below: S. No.…

Q: identify the correct statement in the following, a. Ideal gas is one which has forces of…

A: option (d) ideal gas is one ,which has no forces of intermolecular attraction, is correct

Q: What is the Btu/hour output of an electric heater rated at 15 kilowatts?a. 51.15 Btu/hourb. 51,150…

A: As we know that 1kW = 3412 BTU/hr The. We need to convert 15 kW to BTU/hr

Q: An inverse transducer is a device which converts a. Electrical energy into thermal energy b. An…

A: A transducer is a device that converts energy from one form to another. Usually a transducer…

Q: Dehumidifier is an example of which of the following?

A: Dehumidifier is a air conditioning device.

Q: Identify the correct statement from the following. O a. The portion of energy that cannot be…

A: Reversible work is called the maximum work which we can obtain by using the Carnot cycle.

Q: What is power flight trajectory?

A: The trajectory is defined as the path traveled by an object under specific constraints. Power flight…

Q: Which type of accumulator uses the concept of force of gravity to store the potential energy?…

A: Weight -Loaded Accumulator is used as concept of gravity to store Potential Energy. In Weight-Loaded…

Q: Why is heat usually the last thing determined when using a PV diagram?

A: To explain: The PV diagram. Concept used: PV diagram: A convenient way to visualize changes in the…

Q: Why renewable energy sources are called sustainable? List out any two reasons why they are…

A: Renewable energy sources lend themselves well to sustainable development, especially when compared…

Q: The Stefan-Boltzmann law of themal radiation is applicable for a black body b. All options c gray…

A: The Stefan- Boltzmann law only applies to the body which absorbs all the incident heat radiation. In…

Q: Choose one of the following statements as being correct. Select one: O a. There is no energy…

A: Given data  To select the correct option.

Q: Where did the power output value (37,501.88 kW) came from

A: Given data:- turbine efficiency =85% Generator efficiency=95% Power output of the turbine=46442 KW…

Q: The property that changes when the explosions within an internal combustion engine are converted to…

A: The property that changes when the explosions within an internal combustion engine are converted to…

Q: Which one should not be considered as an energy source? Please choice one below; None of these Oil…

A: Energy source: A source from which useful energy can be extracted or recovered either directly or by…

Q: Which of the following are pure substances?     A gold bar     The air around you     Water…

A: A pure substance can be an element like metals, non-metals, or metalloids or compounds like water,…

Q: How would an engineeer use the design process to build a car that uses less gas?

A: Given Engineer To find Design process for gas efficient for car making

Q: Explain the definition of power (Watt) and energy (Joule) in electricity.

A:

Q: 4. Assuming you know the geometry of the ropes, you cannot determine the forces in the cables in…

A: Given: There are three systems of cable mass system. In A and B system has three cables so lamis…

Q: نقطة واحدة Babies sometimes sleep .5 .during the day

A: It is very common in babies to sleep around 8 hours in a day.

Q: In two cities, the first one has mostly a very hot and clouded weather but the second city has…

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Q: Which renewable resources generate the maximum power in Oman? Ocean thermal O Geothermal O Solar…

A: Oman tops the list of countries that have the highest solar densities in the world. In the coming…

Q: If 700 J of work are done in 7 seconds then which of the following is the average power produced?…

A: following is the answer to the above question-

Q: Which of the following statements is correct? (select all that apply) a. A hydropower plant includes…

A: Option - A &  B are correct

Q: How to apply the law of electric charges associating yourself from others and in choosing your…

A: Given Law of electric charge To find Law of electric charge for associating yourself and other Law…

Q: How much change in the power of wind will take place if wind velocity becomes 3 times

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Q: In any process where heat is added to the system and work is done by the system,the net energy…

A: This question is from thermodynamics fist law.

Q: A device that converts light energy into electric energy is O a. gas turbine O b. thermionic…

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Q: 1- In a bike, the __________ is converted into power. A. kinetic energy B. heat energy C. work…

A: As bike rotates kintect energy generates and converts to power to move it.

Q: What is the effect of acceleration on a beam of light shone horizontally at one wall?

A: Since the accelerated elevator moves up during the time light travels across the elevator, the…

Q: 4. A drum 6 inches in diameter and 40 inches long contained acetylene at 250 psia and 80 degrees…

A:

Q: An electric fan transforms _____________ energy into _____________ energy. Electrical; Heat…

A: Given data An electric fan transforms _____________ energy into _____________ energy

Forms of Energy

Energy is described as the capability to accomplish a task, like the ability to push a block by applying force on it. It is a quantitative property that is used to accomplish work on an object.