Category: Physics

How many 111 planes are there in a cubic lattice? 7.1. Face;;’Centered Cubic There are 4 octahedral planes {111), (111), (11 I) and (Ill), 6 <110> directions in each octahedral plane. Each of the directions is common to two octahedral planes, resulting in a total of 12 slip systems. Slip is also possible on (100) […]

How high can a human survive fall? Normally, not very far. People usually survive falls from a height of 20-25 feet (6-8 meters), but above that, things get very deadly very fast. A study done in Paris in 2005 looked at 287 victims of falls, and found that falls from 8 stories (30 meters) or […]

What type of reaction is carbon dioxide and water? combustion reaction Where is dissolved carbon dioxide found? Water Can people smell carbon dioxide? It has no smell, no taste, and no sound. Neither people nor animals can tell when they are breathing it, but it can be fatal. Carbon monoxide (CO) is a by-product of […]

Can I sleep after I hit my head? A person can go to sleep following a concussion if he or she is awake and able to hold a conversation. No other symptoms, such as dilated pupils or trouble walking, should be present before sleeping. What should you do if you hit your head really bad? […]

What tools do you need to find the density of an object? Density is defined as mass per unit volume, so it is necessary to measure both the weight and volume of an object to determine its density. Use a scale to measure the object’s weight. A ruler can be used to measure the dimensions […]

Can continents shift back together? The Earth’s continents are in constant motion. On at least three occasions, they have all collided to form one giant continent. If history is a guide, the current continents will coalesce once again to form another supercontinent. And a study in Nature now shows how that could come about. What […]

How do you find the fundamental frequency on a calculator? Fundamental frequency is calculated using the formula f = v/2*L where v is the speed of the sound wave, and L is the length of a tube or device the wave is traveling through. How do you find the fundamental frequency with length? Wave Velocity […]

Are glasses concave? Concave lenses are used in eyeglasses that correct nearsightedness. Convex lenses are used in eyeglasses for correcting farsightedness, where the distance between the eye’s lens and retina is too short, as a result of which the focal point lies behind the retina. Is a Halfspace convex? It also says a halfspace is […]

How often should you test for radon? The EPA even recommends checking radon levels at least every two years as radon flow can increase over a timescale longer than one calendar year. This is to say, just as radon levels fluctuate within a calendar year, they also fluctuate as years pass. Can you sue for […]

Can you or could you please? Originally Answered: “Can you please” or “Could you please” — which is correct? “Could” is the polite form of “can”—so both are correct, but we use them in different situations. We use “can” when we are telling someone to do something. We use “could” when we are making a […]