Do satellites go over the North Pole? Satellites can orbit Earth’s equator or go over Earth’s North and South Poles . . . or anything in between. What’s the coldest place on earth right now? Oymyakon, in Russia’s Sakha Republic, is officially the coldest permanently inhabited place in the world, with a January average of […]
Can the law of momentum conservation ever be violated?
Can the law of momentum conservation ever be violated? Conservation of momentum is violated only when the net external force is not zero. But another larger system can always be considered in which momentum is conserved by simply including the source of the external force. Is it possible to destroy energy? First Law of Thermodynamics: […]
What is the basis for comparison in an experiment?
What is the basis for comparison in an experiment? An experiment is based on the comparison between a “control group” with an “experimental group”. a) These two groups are identical except for one factor. b) The control group serves as the comparison. It is the same as the experiment group, except that the one variable […]
Is the grandfather paradox possible?
Is the grandfather paradox possible? The grandfather paradox is a potential logical problem that would arise if a person were to travel to a past time. But contradictions such as the grandfather paradox don’t mean that time travel is impossible. How many paradoxes are there? There were apparently 40 ‘paradoxes of plurality’, attempting to show […]
Has a car broken the sound barrier?
Has a car broken the sound barrier? Thrust SSC holds the world land speed record, set on 15 October 1997, when it achieved a speed of 1,228 km/h (763 mph) and became the first land vehicle to officially break the sound barrier. Can a 737 break the sound barrier? Commercial aircraft ordinarily can’t break the […]
How do you decide which tasks are the most important?
How do you decide which tasks are the most important? How to prioritize your tasks (and your time) Capture everything on a Master List and then break it down by monthly, weekly, and daily goals. Separate the urgent from the important tasks with the Eisenhower Matrix. Rank your daily tasks by their true priority with […]
Is hair the dirtiest part of the body?
How many miles is 8 hours?
How do we use momentum in everyday life?
How do we use momentum in everyday life? One example is the use of air bags in automobiles. Air bags are used in automobiles because they are able to minimize the effect of the force on an object involved in a collision. Air bags accomplish this by extending the time required to stop the momentum […]
What do you use to measure diameter?
What do you use to measure diameter? Slide calipers (Digital, Dial or Vernier), outside/ inside micrometers, bore gauges and pin gauges are often used for diameter measurement and control in mechanical engineering applications. The selection of the tool depends on the accuracy requirement and the feature to be measured. What is the most common diameter […]