What is the function of normal saline? Normal Saline is a prescription medicine used for fluid and electrolyte replenishment for intravenous administration. Normal Saline may be used alone or with other medications. Normal Saline belongs to a class of drugs called Crystalloid Fluid. What happens if you use distilled water instead of saline? Giving large […]
What is the difference between density and relative density?
What is the difference between density and relative density? Density is by definition the ratio of the mass and volume of a body. SI dimension of density is kilogram per cubic meter – kg / m3. Relative density is the ratio between the density of a measuring substance and the density of some other reference […]
Is Half Life predictable?
Is Half Life predictable? The half-life of any radioactive isotope is a measure of the tendency for the nucleus to decay, and this measure is based purely upon probability. It is impossible to know when a single radioactive atom will decay, but the time required for large numbers of identical radioactive atoms to decay is […]
How many amino acids are attached to a single transfer RNA?
How many amino acids are attached to a single transfer RNA? one amino acid What is the end result of translation? When the ribosome reaches a stop codon, it releases the mRNA strand and amino acid sequence. The amino acid sequence is the final result of translation, and is known as a polypeptide. What happens […]
What can cause a molecular cloud to collapse?
What can cause a molecular cloud to collapse? Summary: Stars form in cold, dense regions of space called molecular clouds. When the force of gravity pulling in on the cloud is greater than the strength of internal pressure pushing out, the cloud collapses into a protostar. What do you call a star that died? When […]
What is the First and Second Law of Thermodynamics?
What is the First and Second Law of Thermodynamics? The First Law of Thermodynamics states that energy cannot be created or destroyed; the total quantity of energy in the universe stays the same. The Second Law of Thermodynamics is about the quality of energy. It states that as energy is transferred or transformed, more and […]
Can teachers say shut up to students?
Can teachers say shut up to students? No. They’re not supposed to yell “shut up.” It’s also not a big deal. Your teacher is not going to be disciplined or terminated for this unless you have a very irresponsible or retaliatory administration. Can a teacher say I love you to a student? Yes, in some […]
Does the earth take exactly 24 hours to rotate?
Does the earth take exactly 24 hours to rotate? Earth rotates once in about 24 hours with respect to the Sun, but once every 23 hours, 56 minutes, and 4 seconds with respect to other, distant, stars (see below). Earth’s rotation is slowing slightly with time; thus, a day was shorter in the past. This […]
Do viruses have a cell wall?
Do viruses have a cell wall? Viruses are so much smaller than bacteria. They were not visible until the invention of the electron microscope. A virus has a simple structure, it has no internal cellular structure, no cell wall or cell membrane, just the protein coat that holds the string of nucleic acid. Do viruses […]
Is friction good for machines?
Is friction good for machines? The force of friction can also be a good thing. Tires are specifically made to have a large kinetic friction between the tire and the road….4- Friction and Machines. Simple Machine Friction Point Lever At the fulcrum Pulley Axle of pulley and between rope and wheel Wheel and axle On […]