How many generations of stars are there? When new stars form, the most massive ones will die quickly, and their remnants can then participate in future episodes of star formation. It is possible that many of these atoms have been inside dozens or even 100+ generations of stars by the present time. What is the […]
Does the speed of a satellite in orbit depend on its mass?
How do you know if someone is watching you through the mirror?
Is 2Mg O2 2MgO synthesis reaction?
Is 2Mg O2 2MgO synthesis reaction? Products- Ending materials in a chemical reaction. Synthesis- a reaction that starts with two or more substances to form a single product. 2Mg + O2 –> 2MgO. Decomposition- a reaction that starts with a single reaction and forms two or more products. What is the balanced equation for Pb […]
What is the sound of a ship called?
What is the sound of a ship called? The sound of ship’s siren on the steam ship “Sołdek”. The recording was realized on board of the ship-museum belonging to the National Maritime Museum in Gdańsk (Poland). The sound of ship’s siren was used as so called fog signal, i.e. sound signal emitted by the ship […]
Which polynomial is factored completely?
Which polynomial is factored completely? We say that a polynomial is factored completely when we can’t factor it any more. Here are some suggestions that you should follow to make sure that you factor completely: Factor all common monomials first. Identify special products such as difference of squares or the square of a binomial. Which […]
What is the fastest speed limit in the US?
What direction do surface winds move in the Northern Hemisphere?
What direction do surface winds move in the Northern Hemisphere? The Coriolis effect makes wind systems twist counter-clockwise in the Northern Hemisphere and clockwise in the Southern Hemisphere. The Coriolis effect causes some winds to travel along the edges of the high-pressure and low-pressure systems. Why is Coriolis effect different in Southern Hemisphere? The reverse […]
What kind of charge a glass rod acquires when it is rubbed with a piece of fur?
What kind of charge a glass rod acquires when it is rubbed with a piece of fur? By convention, we call one type of charge “positive”, and the other type “negative.” For example, when glass is rubbed with silk, the glass becomes positively charged and the silk negatively charged. What do you do with rose […]
Is Sickle Cell Anemia a deletion?
Is Sickle Cell Anemia a deletion? Sickle-cell anemia results from an A leads to T transversion in the second nucleotide of codon 6 of the beta-globin gene. We now report an uncommon beta-thalassemia gene that contains a deletion of this nucleotide. How do you know if a mutation is silent? The two amino acids are […]