Which element has longest half-life? Bismuth-209 (209Bi) is the isotope of bismuth with the longest known half-life of any radioisotope that undergoes α-decay (alpha decay). What’s so special about element 115? Moscovium is a radioactive, synthetic element about which little is known. It is classified as a metal and is expected to be solid at […]
What would happen if all the prairie dogs died or were killed?
What would happen if all the prairie dogs died or were killed? What would happen if the prairie dog went extinct? We could expect drastic changes in the flora and fauna of the Great Plains. Many other species would die with it or become endangered, including the black-footed ferret, burrow owl, and mountain plover. Are […]
How do you calculate valve torque?
How do you calculate valve torque? Dynamic torque can be calculated from the formula Td = C (ΔP). Here, ΔP is the effective pressure drop across the valve at a given temperature and C is, once again, a constant. What is Torque valve? A torque-seated valve (e.g., gate valve) will use the torque switches to […]
Where should you connect a voltmeter?
Where should you connect a voltmeter? A voltmeter is placed in parallel with the voltage source to receive full voltage and must have a large resistance to limit its effect on the circuit. An ammeter is placed in series to get the full current flowing through a branch and must have a small resistance to […]
What are the three main types of body membranes?
What are the three main types of body membranes? There are three types of epithelial membranes: mucous, which contain glands; serous, which secrete fluid; and cutaneous which makes up the skin. What are the three functions of body membranes? Biological membranes have three primary functions: (1) they keep toxic substances out of the cell; (2) […]
Which sample has maximum density?
Which sample has maximum density? The maximum density of water is at 4°C as there are two opposite effects that are in balance. Why do metals have low density? Since alkali metals have a large atomic size and low atomic weight, they have low density. What are the top 10 densest metals? The 10 Densest […]
What happens if you put a vibrating tuning fork in water?
What happens if you put a vibrating tuning fork in water? By sticking the vibrating tuning fork in a denser medium like water, the tuning fork’s energy is transferred into the act of splashing water, rather than hearing sound. Waves are energy carriers. Water is a better medium to visualize sound waves and detect the […]
Where is the magnetic field strongest?
Where is the magnetic field strongest? center Why does electricity produce magnetic fields? Inside a magnet, the atoms at one end contain electrons that all spin in one direction – meanwhile the atoms at the other end contain electrons that all spin in the opposite direction. Rather than spinning in a balanced way, the electrons […]
What is a available energy?
What is a available energy? physics. : that part of the energy of bodies or systems which exists under such conditions that work may be theoretically derived from it — compare degradation of energy, entropy, unavailable energy. What is available energy AE? The maximum work output obtainable from a certain heat input in a cyclic […]
What is perfect black?
What is perfect black? A body which absorbs all the radiant energy incident upon it and reflects or transmits none is called a perfectly black body. It absorbs all incident energy. What is the meaning of irradiation? Irradiation is the process by which an object is exposed to radiation. The term irradiation usually excludes the […]