Can an elliptical galaxy evolve into a spiral can a spiral turn into an elliptical How? We know this because spiral galaxies rotate quickly (on an astronomical scale), while elliptical galaxies do not. There is no way that an elliptical galaxy could spontaneously begin rotating, so there is no way an elliptical galaxy could turn […]
How does volume affect rms speed?
How does volume affect rms speed? Since the temperature is remaining constant, the average kinetic energy and the rms speed remain the same as well. The volume of the container has decreased, which means that the gas molecules have to move a shorter distance to have a collision. What is the rms speed? The root-mean-square […]
What is the word pandemic mean?
What is the word pandemic mean? : an outbreak of a disease that occurs over a wide geographic area (as multiple countries or continents) and typically affects a significant proportion of the population : a pandemic outbreak of a disease. More from Merriam-Webster on pandemic. How long did the 1918 flu pandemic last? The influenza […]
Who invented the zodiac?
Who invented the zodiac? Babylonians Are there 12 or 13 zodiac signs? Earth actually travels through 13 signs, including Capricorn, Aries, and, yes, Ophiuchus, but some 3,000 years ago the Babylonians—not NASA—decided 12 was neater than 13, so excluded the 13th zodiac sign and divided the zodiac into 12 parts based on the 12 months […]
What element is similar to nickel?
What element is similar to nickel? Metal Can nickel exist as a gas? Elements can be classified based on their physical states (States of Matter) e.g. gas, solid or liquid. This element is a solid. Nickel is classified as a “Transition Metal” which are located in Groups 3 – 12 of the Periodic Table. What […]
What are the causes of shortage of electricity?
What are the causes of shortage of electricity? There are many causes of power failures in an electricity network. Examples of these causes include faults at power stations, damage to electric transmission lines, substations or other parts of the distribution system, a short circuit, cascading failure, fuse or circuit breaker operation. Why electricity is harmful? […]
How do people walk 30 minutes a day?
Do longitudinal waves have nodes?
Do longitudinal waves have nodes? Longitudinal wave – a wave that is propagated in the same direction as the displacement of the transmitting medium. Node – A node is a point along a standing wave where the wave has zero amplitude. A wave center is stable at the node of the standing wave. What is […]
What fertilizer makes plants grow faster?
What fertilizer makes plants grow faster? High-nitrogen fertilizers are known for causing huge growth in plants, which is why many types are rich in nitrogen or include it as the main component. Fertilizers high in nitrogen will also restore bright green hues to your foliage. Which fertilizer works best? Best all-purpose fertilizers Jack’s Classic 20-20-20 […]