Category: Physics

What are lab safety rules? Five Lab Safety Rules You Must Follow Lab safety is one of the most important concerns when you are working with medical supplies, hazardous chemicals, and heavy-duty equipment. Wear Proper Lab Clothing. Handle Chemicals with Care. Properly Care for the Equipment. Always Locate Emergency Equipment. Keep Food and Drink Out […]

Is S1 louder than S2? The intensity of S1 depends upon: the position of the AV valves at the onset of ventricular systole, the structure of the leaflets themselves, and the rate of pressure rise in the ventricle. Normally, S1 is louder than S2 at the apex, and softer than S2 at the base of […]

Why is it important to have evidence? Evidence is used to back up or refute arguments, and it helps us to make decisions at work. Using evidence allows us to work out what is effective and what is not. Evidence indicates the ideas that are effective and those, which are not meaning that programs are […]

How many seconds does it take to stop a car going 60 mph? 4.5 seconds How long does it take to stop a car at 55 mph? Only then does the car begin to slow. On dry pavement that takes 4 1/2 seconds, traveling another 144 feet, but if it’s wet, you’ll travel 183 feet. […]

How high can a balloon go? Because density is altered by altitude, the helium balloon can reach a height of 9,000 meters, or 29,537 feet. Anything higher than this altitude will cause the helium within the balloon to expand and the balloon to pop. What is the common unbalanced force acting on an object in […]

What can be visible or infrared? Visible light has a wavelength that ranges from 380 nm – 750 nm on the electromagnetic spectrum while infrared light is just beyond it, ranging from 700 nm – 1 mm, the start of the non-visible portion of the spectrum. As a result, infrared cannot be seen except with […]

What is the Colour of K2Cr2O7? Potassium dichromate Names Appearance red-orange crystalline solid Odor odorless Density 2.676 g/cm3, solid Melting point 398 °C (748 °F; 671 K) What is the name for K2Cr2O7? Potassium dichromate(VI) What is the structure of K2Cr2O7? Potassium dichromate is an inorganic chemical compound possess immense industrial and laboratory importance. It […]

What is Joule formula? In equation form: work (joules) = force (newtons) x distance (meters), where a joule is the unit of work, as defined in the following paragraph. In symbols: W = F x d. In practical terms, even a small force can do a lot of work if it is exerted over a […]

Can black light exist? A blacklight (or often black light), also referred to as a UV-A light, Wood’s lamp, or ultraviolet light, is a lamp that emits long-wave (UV-A) ultraviolet light and very little visible light. This stands for “blacklight blue”. Why is the flame on my candle so small? There are many potential reasons […]

Which functions are continuous and differentiable everywhere? In mathematics, the Weierstrass function is an example of a real-valued function that is continuous everywhere but differentiable nowhere. It is an example of a fractal curve. Is every continuous function is integrable? What we get from this is that every continuous function on a closed interval is […]