Why do we use a radio telescope to observe the center of our galaxy? Radio waves also travel unimpeded by the dust in our galaxy so we can detect other galaxies that lay beyond the centre of our galaxy along the line of sight. These galaxies are impossible to view using visible light and optical […]
How do red lights know when to turn green?
How do red lights know when to turn green? Look for signs of an inductive loop detector. Once a vehicle is detected by the loops, the traffic light system is signaled that there is someone waiting to proceed. The lights for the cross traffic will then begin to change after a safe time period before […]
Which atom is increasing in oxidation number?
Which atom is increasing in oxidation number? A loss of negatively-charged electrons corresponds to an increase in oxidation number, while a gain of electrons corresponds to a decrease in oxidation number. Therefore, the element or ion that is oxidized undergoes an increase in oxidation number. What happened to the oxidation number of element A? Reactions […]
Is stress a material property?
Is stress a material property? No, stress is not a property of a material. Stress is simply THE RESISTANCE OFFERED BY A BODY to external force applied on it. It doesn’t remain the same every time like a property of a material. How do you find material properties? How to find mechanical properties of materials […]
Which aberration is most severe in microscopy?
Which aberration is most severe in microscopy? Comatic aberrations Which aberration is most severe in microscopy and why? Spherical Aberration – The most serious of the monochromatic defects that occurs with microscope objectives, spherical aberration, causes the specimen image to appear hazy or blurred and slightly out of focus. How do you correct aberration? Change […]
What is the full electron configuration for bromine?
What is the full electron configuration for bromine? [Ar] 4s² 3d¹⁰ 4p⁵ What is the noble gas shortcut for bromine? The electronic configuration of bromine using the noble-gas shorthand notation is [Ar] 3d¹⁰ 4s² 4p⁵. What is the orbital diagram for bromine? Bromine Orbital Diagram Bromine will have 35 arrows placed in the orbital-filling diagram […]
Can a transformer be used in increasing or decreasing current?
Can a transformer be used in increasing or decreasing current? That means when we increase voltage we must also increase the current (I). That is true when feeding a resistor. But transformer increases the current while decreasing the voltage or decreasing the current while increasing the voltage. A transformer is not a resistor so you […]
What are the 3 patterns of inheritance?
What are the 3 patterns of inheritance? Patterns of inheritance in humans include autosomal dominance and recessiveness, X-linked dominance and recessiveness, incomplete dominance, codominance, and lethality. How do you determine inheritance patterns? The phenotype of an individual is determined by his or her genotype. The genotype is determined by alleles that are received from the […]
How tall is a billion dollars in $100 bills?
How tall is a billion dollars in $100 bills? If $1million in $100 dollar bills stacks up to 40 inches (3.3 feet: kind of underwhelming to look at, really!), and $1billion is 40,000 inches (that’s 0.63 miles high: much more impressive!), $1trillion in $100 dollar bills is 40,000,000 inches high, which is 631 miles. How […]
What is service lateral?
What is service lateral? A service lateral consists of the underground service conductors between the street main – including risers – and the first point of connection to the service-entrance conductors in a terminal box, meter, or other enclosure. Which does not need an individual branch circuit? A branch circuit that supplies one duplex receptacle […]