What are the advantages of a dynamic microphone? Key advantages to a dynamic microphone: Rugged and able to handle high sound pressure levels, like those delivered by a kick drum. Provide good sound quality in all areas of microphone performance. They do not require a power source to run. They are relatively cheap. What do […]
Can 2 remote control cars same frequency?
Can 2 remote control cars same frequency? If you don’t plan to run your RC cars, trucks, boats, or aircraft alongside other radio controlled vehicles, it doesn’t really matter which frequency they use. However, running two 27MHz or two 49MHz RC cars near each other will usually result in interference—crosstalk. The radio signals get mixed […]
What is the difference between 6ka and 10kA MCB?
What is the difference between 6ka and 10kA MCB? The main difference between the two is their capacity, with the MCB rated under 100 amps with an interrupting rating of under 18,000 amps. How do you calculate kA rating? The maximum amount of current that can flow through a circuit is determined by the size […]
What is field name?
How does oxygen enter plant cells?
How does oxygen enter plant cells? In the natural environment, plants produce their own food to survive. As with photosynthesis, plants get oxygen from the air through the stomata. Respiration takes place in the mitochondria of the cell in the presence of oxygen, which is called “aerobic respiration”. What triggers stomata to open? Stomata are […]
What is the formula for oxygen?
What is the formula for oxygen? O₂ Is oxygen a mixture? *Note: pure oxygen gas consists of molecules but it is still considered an element, rather than a compound, as the molecules are made up of a single type of element….Pure Substances. Pure Substance Element or Compound? Consists of: Ammonia (NH3) compound ammonia molecules Is […]
Which of these conditions will cause a rock to melt?
Which of these conditions will cause a rock to melt? The three factors that affect whether rock melts include temperature, pressure, and the presence of fluids in the rock. Rock melts when the temperature of the rock increases to above the melting point of minerals in the rock. Rock melts when excess pressure is removed […]
What color bends most during refraction?
What color bends most during refraction? violet light What are two effects of refraction? The major effects of refraction of lights are: Bending of light. Change in wavelength of light. Splitting of light rays if it is polychromatic in nature. Does speed of light change during refraction? When light travels from one medium to another, […]
Which is the most common type of fingerprint pattern?
Which is the most common type of fingerprint pattern? Loop Does each finger have a different fingerprint? Yes, it is common to have different patterns on the fingers of one hand. The reason is because each finger develops individually. During fetal development, factors across the surface of each finger determine how the ridges will align. […]
What is duct silencer?
What is duct silencer? An HVAC duct silencer is specifically engineered to reduce airborne noise carried along ducts or produced by enclosures. You’ll also find these silencers described as sound attenuators when they are used in industrial settings. Why is my HVAC return so loud? If the usual noise volume increases, or you start to […]