What energy source should we pursue and why? Also, which one should we stay away from and why?

Define the ENERGY CONVERSION EFFICIENCIES.

Estimate the greenhouse gas emissions from power production for the following threescenarios. Focus on the greenhouse gas emissions associated with theoperational energy, not the greenhouse gas emissions associated with the manufacture of theproduct or end of life processes.The hourly load demand for a home is given.1)  All power during an hour of up to 5 kW is drawn from a baseload coal powerplant. Any power in excess of that amount is drawn from a peaker plant running as anatural gas combined cycle power plant.2) Localized solar energy production is provided in the table on the next page.Energy demand by the house is first met by this solar generation. If the total hourlyenergy demand is below 5 kW, then any extra energy required beyond that provided bythe solar panels is drawn from a coal power plant. If the total hourly demand is above 5kW, then any extra hour demand beyond 5 kW is met by a natural gas combined cyclepower plant. No credit is given if the solar energy production…

Thermodynamics   in heat engine QL is out and QH is in   how do they differ in heat pump and refrigerators what will be in and what will be out?   and how do they differ in a carnot cycle what, what will be in and what will be put please write short notes explaining am really confused

GIVE AN EXAMPLE OF HOW TO ENERGY TRANSFER BY HEAT?

I need the answer as soon as possible

Why is the work done by spring force negative?

How many Btu of heat can be produced by 4 kWh ofelectricity?

A power plant consumes 3000 tons of coal per day. The coal has an average energy content of 10,000 BTU/lb. The power plant has an overall efficiency of 25%. What is the plant power output in MW? A. 187 B. 183 C. 181 D. 185

The motor of an electrical appliance consumes 18 000 J. during itsoperation, 9450 J dissipated in heat, 250 J were used forproduce light and 350 J are required to power the electronic panel ofdevice. What is the fuel efficiency of the engine of this device ?