How do you find the critical points of a function? A critical point occurs when the derivative is 0 or undefined. If our equation is f(x)=mx+b, we get f'(x)=m. So if the function is constant (m=0) we get infinitely many critical points. How do you find the function of two variables? First, take the partial […]
Does a TV use chemical energy?
Does a TV use chemical energy? A television set is another device that operates by the transformation of energy. An electrical beam from the back of the television tube strikes a thin layer of chemicals on the television screen, causing them to glow. In this case, electrical energy is converted into light. How does a […]
Where is a strain gauge used?
Where is a strain gauge used? Strain gauges are used to measure the torque applied by a motor, turbine, or engine to fans, generators, wheels, or propellers. This equipment is found in power plants, ships, refineries, automobiles and industry at large. Power is obtained by measuring the strain and rotational speed on a shaft. How […]
What is the low voltage contact limit?
What is the low voltage contact limit? Section 680.2 defines the Low Voltage Contact Limit as. A voltage not exceeding the following values: (1) 15 volts (RMS) for sinusoidal ac. (2) 21.2 volts peak for nonsinusoidal ac. Is low voltage wiring required to be in conduit? Low-voltage wiring shall not be strapped to conduit. How […]
At what temperature does air become solid?
At what temperature does air become solid? Solid oxygen forms at normal atmospheric pressure at a temperature below 54.36 K (−218.79 °C, −361.82 °F). Solid oxygen O2, like liquid oxygen, is a clear substance with a light sky-blue color caused by absorption in the red part of the visible light spectrum. Can you make solid […]
What amount of chlorine tablets are required for disinfection of 20 liters of water?
What amount of chlorine tablets are required for disinfection of 20 liters of water? Tablet Size: 0.5gm or 500mg (+ – 0.025 gm.) Strength: Available Chlorine: 25 to 45 mg. Treats: 20 liters water (approx.) Treats: 80 liters water (approx.) How much chlorine do I add to 1000 Litres? To dose water in a tank […]
How do you wire an anemometer?
How do you wire an anemometer? Hot Wire Anemometer works When an electrically heated wire is placed in a flowing gas stream, heat is transferred from the wire to the gas and hence the temperature of the wire reduces, and due to this, the resistance of the wire also changes. What is the principle of […]
How do you find the speed of a transverse wave on a string?
What do capacitors do in circuits?
What do capacitors do in circuits? Capacitors are widely used in electronic circuits for blocking direct current while allowing alternating current to pass. In analog filter networks, they smooth the output of power supplies. In resonant circuits they tune radios to particular frequencies. What is the main function of a capacitor? A capacitor is an […]
What is mid wing aircraft?
What is mid wing aircraft? Mid-wing aircraft have the wings positioned at the sides of the fuselage at a position between the top and bottom of the fuselage. The wing structural box for mid-wing aircraft passes through the middle of the fuselage where a cargo or passenger compartment would be located in a cargo aircraft. […]