Is Can you please a question? Senior Member. “Can” and “could” are both equally polite – the key word is “please”, which is present in both sentences. The sentence beginning with “please can…” is a question, and it should have a question mark. It is a mistake/omission by the writer. Could you please help me […]
Which two protists are animal-like?
Which two protists are animal-like? Animal-like protists include the flagellates, ciliates, and the sporozoans. Which protist moves a whip like tail? Flagellum Do diatoms have a whip-like tail? Diatoms are single-celled algae that have chloroplasts and can undergo photosynthesis. Dinoflagellates are also single-celled but they have two whip-like tails called “flagella.” Although many dinoflagellates also […]
What is the fastest diffusion?
What is the fastest diffusion? Diffusion is fastest through gases, followed by liquid, then plasma, and lastly, solids. In chemistry, diffusion is defined as the movement of matter by the random motions of molecules. How do you know how fast a gas will diffuse? It states that the diffusion rate of a gas is inversely […]
Is centrifugal a real word?
Is centrifugal a real word? Centrifugal is fake and pushes away from the center. To look up their word-origins, I used the Online Etymology Dictionary. First I looked up “centripetal”. Centripetal force is the force REQUIRED for circular motion. What is known as centrifugal force? Centrifugal force, a fictitious force, peculiar to a particle moving […]
What frequency does television use?
What frequency does television use? In the US and Canada, the VHF television band occupies frequencies between 54 and 216 MHz and the UHF band between 470 and 890 MHz. In general, VHF channels are numbered 2 to 13 and UHF channels 14 to 51. What frequency are digital TV channels? Digital TV (Freeview) Frequencies […]
What is C in Einstein equation?
What is C in Einstein equation? Now we’re getting to the c² part of the equation, which serves the same purpose as the star-on and star-off machines in “The Sneetches.” The c stands for the speed of light, a universal constant, so the whole equation breaks down to this: Energy is equal to matter multiplied […]
How damaging is a sonic boom?
How can psychological principles help you as a student?
How can psychological principles help you as a student? How can psychological principles help you learn and remember? The testing effect shows that learning and memory are enhanced by actively retrieving, rather than simply rereading, previously studied material. Scientific psychology began in Germany in 1879 when Whilhelm Wundt opened the first psychology laboratory. What is […]
What takes place in the reactor vessel?
What takes place in the reactor vessel? Inside the reactor vessel, the fuel rods are immersed in water which acts as both a coolant and moderator. The moderator helps slow down the neutrons produced by fission to sustain the chain reaction. The heat created by fission turns the water into steam, which spins a turbine […]
What are the methods of investigation?
What are the methods of investigation? Scientists use different methods of investigation in different circumstances. These methods include (in no particular order) fair testing, identifying and classifying, modelling, pattern seeking, and researching. What do descriptive and comparative investigations have in common? Descriptive Investigation: Involve describing and/or quantifying parts of a natural system. Example – observing […]