Category: Physics

What is an example of a force multiplier? Some examples of force multipliers are inclined planes and most levers. Some examples are wheels and axles and third class levers. Simple and complex machines. Machines can be either simple or complex. In which condition machine acts as a force multiplier II speed multiplier? Answer. Answer: a) […]

How expensive is a dock? On average, expect to pay $8,000 to $30,000 for a standard sized permanent boat dock. For a very small dock, you may get away with paying as little as $5,000. Piling docks cost $20 to $40 per square foot including installation. The most expensive types of docks usually max out […]

Is neptunium man-made? Uranium, found in rock, soil and water, undergoes a natural nuclear reaction that results in small amounts of isotopes Np-237 to Np-240. The majority of neptunium, however, is anthropogenic; that is, it is created as a byproduct of reactions in nuclear power plants. Why is it called americium? Americium was first isolated […]

What is the working principle of inductor? An inductor is a passive electronic component which is capable of storing electrical energy in the form of magnetic energy. Basically, it uses a conductor that is wound into a coil, and when electricity flows into the coil from the left to the right, this will generate a […]

What is the half life of isotope B? There are 13 radioisotopes that have been discovered, with mass numbers from 7 to 21, all with short half-lives, the longest being that of 8B, with a half-life of only 770 milliseconds (ms) and 12B with a half-life of 20.2 ms. All other isotopes have half-lives shorter […]

Is no thanks rude? In America, “no thanks” isn’t rude as long as you say it in a pleasant manner. You could also say, “No, I’m good, thanks”, or “No, i’m ok.” Of course you can always say “No thank you” if you are worried about it. Is it OK to say no thanks? No […]

How do you find f1 and f2 when given the median? N = total student, f = frequency of the class containing median, cf = cumulative frequency before the median class, h = class interval…. Age (in years) Frequency (f) Cumulative Frequency (cf) 20 – 30 25 35+f1 30 – 40 30 65+f1 40 – […]

How do you use data to inform your instruction? 4 Ways Student Data Can Inform Instruction Use Data to Identify At-Risk Students. When it comes to at-risk students, early detection is critical. Use Data to Close the Learning Gap. Use Data to Predict Student Achievement on End-of-Year Targets. Use Data to Promote Success in Subsequent […]

What do you mean by central orbit? A central orbit is an orbit in which the attractive force between a central mass and test mass is a central force, i.e., is directed towards the central mass. A general central force law is therefore given by. (1) for any function f(r), where is the force per […]

What does bully for you mean? To treat in an overbearing or intimidating manner. To force one’s way aggressively or by intimidation. : : : : ADJECTIVE: Excellent; splendid. : : INTERJECTION: Used to express approval: Bully for you! Does bully mean good? (US, slang) Very good; excellent. A bully horse. (slang) Jovial and blustering; […]