Do all elements have isotopes? All elements have isotopes. There are two main types of isotopes: stable and unstable (radioactive). There are 254 known stable isotopes. All artificial (lab-made) isotopes are unstable and therefore radioactive; scientists call them radioisotopes. How do isotopes give off radiation? Radioactive isotope, also called radioisotope, radionuclide, or radioactive nuclide, any […]
How does seasonal changes affect humans?
How does seasonal changes affect humans? Mood and immunity are well known to change with seasons in humans and there are indications that several brain aspect could also be seasonal.” During the winter, they used significantly less brain activity involved in attention. On the memory task, brain activity peaked in autumn and hit a low […]
What is difference between seismic focus and epicenter?
What is difference between seismic focus and epicenter? seismic focus is the point from where the waves arise. it is the point where fault occurs. epicenter is the point above earth surface from the seismic focus. epicenter is vertically above seismic focus above earth surface. What is an epicenter and focus? The hypocenter is the […]
Does oxygen and hydrogen make water?
Does oxygen and hydrogen make water? H-2-Oh no! Just mixing hydrogen and oxygen together doesn’t make water – to join them together you need energy. The trouble with adding energy into the equation is that a large-scale chemical reaction of flammable hydrogen and oxygen (which is what keeps a fire burning) is likely to result […]
What is continuity equation of flow?
What is continuity equation of flow? In fluid dynamics, the continuity equation states that the rate at which mass enters a system is equal to the rate at which mass leaves the system plus the accumulation of mass within the system. What is meant by continuity of flow? If steady flow exists in a channel […]
What is the principle of Maldi-Tof?
What is the principle of Maldi-Tof? MALDI is the abbreviation for “Matrix Assisted Laser Desorption/Ionization.” The sample for MALDI is uniformly mixed in a large quantity of matrix. The matrix absorbs the ultraviolet light (nitrogen laser light, wavelength 337 nm) and converts it to heat energy. What is the role of Reflectron in Maldi-Tof? A […]
What to do if red and amber are showing together?
What causes the sun to rise and the sun to set?
Which line is parallel to Y 2×2?
How do you find cosine 300 degrees?
How do you find cosine 300 degrees? Since cos(60∘)=12 , we know that cos(300∘)=12 as well since cos(θ)>0 in the fourth quadrant. Which of the following is equal to COS 300? Important Angle Summary θ° θradians cos(θ) 225° 5π/4 -√2/2 240° 4π/3 -1/2 270° 3π/2 0 300° 5π/3 1/2 Which of the following is equivalent […]