How is angular momentum related to energy? If we push on an object in the forward direction while the object is moving forward, we do positive work on the object. When an object is rotating about its center of mass, its rotational kinetic energy is K = ½Iω2. Rotational kinetic energy = ½ moment of […]
What is the formula of linear charge density?
What is the formula of linear charge density? (i) Linear charge density; λ=ql, where q is the charge and lis the length over which it is distributed. The SI unit is Cm–1. Is charge density constant? Since it is “density”, I suppose that such values as charge density of a volume region ρv, charge density […]
What does pink sky indicate?
What does pink sky indicate? Pink Sky At Night, Sailors Delight; Pink Sky In Morning, Sailors Warning. This means that if there is pink sky at night there will be good weather tomorrow. But, if there is pink sky in the morning there will be bad weather the same day. This quote originally came from […]
What is the aim of rheostat?
What is the aim of rheostat? Answer. The ‘purpose of a rheostat’ is to “increase or decrease” the ‘magnitude of current’. Explanation: The rheostat is a device which acts like a variable resistor that is used to control the “flow of current” in a circuit. What is the main purpose of a rheostat? Rheostat, adjustable […]
What instrument makes a sound with the slowest vibration?
What instrument makes a sound with the slowest vibration? A violin produces sound when the bow draws across the strings and causes ______________ inside the violin. Vibrations What type of matter does sound travel slowest through? Solid, liquid, gas gas Which of these would make a sound with the slowest vibration? Drum, flute, whistle, harmonica […]
What is another name for extended family?
What is another name for extended family? In this page you can discover 5 synonyms, antonyms, idiomatic expressions, and related words for extended-family, like: binuclear family, nuclear-family, kinship group, m nage and relations. What is the difference between your immediate family and your extended family? “Immediate family” consists of parents and their children. For instance, […]
Can volcanic ash be dated?
How do you know if something is objective?
How do you know if something is objective? When something is described as objective, it means that it is an interpretation not based on any personal feeling or emotions. Objective’s synonyms can be words like impartial or unbiased. What is an objective source in history? Objectivity is more complicated when it comes to the interpretation […]
What is the cause of precocious puberty?
What is the cause of precocious puberty? What causes precocious puberty? It may be caused by tumors or growths on the ovaries, adrenal glands, pituitary gland, or brain. Other causes may include central nervous system problems, family history of the disease, or certain rare genetic syndromes. In many cases, no cause can be found for […]
What is difference between COP of refrigerator and COP of heat pump?
What is difference between COP of refrigerator and COP of heat pump? The coefficient of performance or COP (sometimes CP or CoP) of a heat pump, refrigerator or air conditioning system is a ratio of useful heating or cooling provided to work (energy) required. Higher COPs equate to higher efficiency, lower energy (power) consumption and […]