Category: Physics

How many seats are required on a boat that is towing a water skier? three persons How much horsepower do you need to pull a skier? And 90 HP might be enough for a 20-foot boat to pull a skier, but you’re going to need more engine to ski behind a 26-foot boat. What are […]

What is the best first move for White in chess? The Most Popular Chess Opening for White Pieces In modern chess, the most popular opening move for white is to immediately bring the king’s pawn forward two spaces. (This is notated as 1. e4.) The grandmaster Bobby Fischer called 1. Can you win chess in […]

What are some real life examples of acid base reactions? Barium hydroxide (Ba[OH] 2 ) Calcium hydroxide (Ca[OH] 2 ) Lithium hydroxide (LiOH) Potassium hydroxide (KOH) Sodium hydroxide (NaOH) Strontium hydroxide (Sr[OH] 2 ) How do you identify an acid base reaction? To determine whether a substance is an acid or a base, count the […]

Does voltage increase or decrease with distance? If you increase the distance between the two plates electric field does not change just because electric field= surface charge density/ epsilon. so E=V/D gives increment in V as D increses so that electric field remain same. The explanation is simple. Therefore increasing the distance increases the voltage. […]

Can you take a picture in space? Because the ISS moves so fast, the astronauts don’t have time to set up a camera for a shot or change lenses. To ensure they capture a great shot, astronauts always keep eight cameras at the ready in the cupola of the space station, so someone can grab […]

What is U T in signals and systems? The function u(t) can be seen as the limit of the above signal as delta tends to 0. Given this definition of Unit Step function we look into its derivative. The unit impulse function can be regarded as a rectangular pulse with a width of and height […]

Is it true when objects collide some momentum is lost? Momentum is not equal to the mass of an object divided by its velocity. Momentum can be transferred from one object to another. True. When objects collide, some momentum is lost. What bat model did Ken Griffey Jr use? Louisville Slugger C271 Who uses the […]

How do you check if a motor is good? Check for shorts between the power wiring and ground. Select ohms resistance on the multi-meter and set for the 30,000-ohm range. Touch one lead to each motor power lead and the other to the metal motor casing. Any value less than about 0.2 mega ohms is […]

Can OSHA just show up unannounced? OSHA inspections are generally unannounced. In fact, except in four exceptional circumstances when advance notice may be given, it is a criminal offense for any person to give unauthorized advance notice of an OSHA inspection. Can OSHA shut down a company? In reality, OSHA doesn’t shut down job sites. […]

How do you make someone shine? to “shine someone on” is to lie to them or to purposefully deceive them, to tell a tall tale. To lead someone on. A slang synonym/expression would be to “B.S.” someone or to “pull their leg.” What does keep shining mean? What does the phrase “Keep Shining” mean to […]