Why 100 efficiency is impossible? It is impossible for heat engines to achieve 100% thermal efficiency () according to the Second law of thermodynamics. This is impossible because some waste heat is always produced produced in a heat engine, shown in Figure 1 by the term. Which engine is most efficient? Wärtsilä 31SG Which is […]
Which pool ball is red?
Which pool ball is red? These are the colored and numbered balls that make up a set of pool balls. They are numbered 1-15….Solids & Stripes. Number Color Number 2 Blue Number 3 Red Number 4 Purple Number 5 Orange Why are billiard balls numbered? Pool balls are used to play various pool games, such […]
What is the equivalent capacitance of the five capacitors connected as shown in Figure?
What is the equivalent capacitance of the five capacitors connected as shown in Figure? Therefore Net Capacitance would be 1 μF. What is the capacitance C of capacitor? The Capacitance of a Capacitor Capacitance is defined as being that a capacitor has the capacitance of One Farad when a charge of One Coulomb is stored […]
What is resistant to change?
What is resistant to change? Resistance to change is the opposition to altered circumstances or modification of the status quo. Employees may resist change when they haven’t been briefed on the reasons for the change or the thinking behind the decision-making. Listening to employee concerns and ideas will help reduce resistance to change. How do […]
Can wax change without changing state?
Can wax change without changing state? In physical changes no new materials are formed and the particles do not change apart from gaining or losing energy. Melted wax solidifies when cooled but unless it is shaped or moulded it will not be the same shape as at the start. Is melting wax reversible or irreversible? […]
How many electrons pass through a lamp in 1 minute if the current is 200?
How much does 12 inches of snow weigh?
Why would someone want to process their film in the darkroom?
Why would someone want to process their film in the darkroom? Today’s photographic film is made of plastic coated by an emulsion with light sensitive materials. Why would someone want to process their film in the darkroom? It gives the photographer greater control over the print. Chemical temperature is important while developing film, but not […]
What is an example of energy and matter?
How do you know if something is acidic or basic?
How do you know if something is acidic or basic? To determine whether a substance is an acid or a base, count the hydrogens on each substance before and after the reaction. If the number of hydrogens has decreased that substance is the acid (donates hydrogen ions). If the number of hydrogens has increased that […]