Category: Physics

Does speed of sound depend on pitch? The speed of sound is dependent on temperature. As the temperature of the air increases, the speed of sound in air increases. Frequency of sound and pitch are related. The higher the pitch, the greater the frequency. What is the highest possible frequency of sound? That’s about the […]

Can plate tectonics be proven? What is the cause of plate tectonics? Although this has yet to be proven with certainty, most geologists and geophysicists agree that plate movement is caused by the convection (that is, heat transfer resulting from the movement of a heated fluid) of magma in Earth’s interior. What are the evidences […]

Is DNA prokaryotic or eukaryotic? Prokaryotic Cells Prokaryotic Cells Eukaryotic Cells Nucleus No Yes DNA Single circular piece of DNA Multiple chromosomes Membrane-Bound Organelles No Yes Examples Bacteria Plants, animals, fungi Are viruses prokaryotes? Prokaryotes and eukaryotes are distinguished on the basis of their cellular characteristics. Viruses are considered neither prokaryotes nor eukaryotes because they […]

Why do we use 8.314 as the value for R? R = 8.314 is actually the more important value because it is expressed in SI units (note that 1 J = 1 Pa * m^3= 1 N/m^2 * m^3 = 1 N * m). What does R mean in chemistry? R group: An abbreviation for […]

Do neurons allow us to think? In short, our nervous systems detect what is going on around us and inside of us; they decide how we should act, alter the state of internal organs (heart rate changes, for instance), and allows us to think about and remember what is going on. To do this, it […]

Can you run jet fuel in a diesel? Jet fuel (there’s variants, but a very common one is known as Jet A) is really close to regular old diesel fuel. And, for that matter, kerosene. You can even run it straight in your diesel car or truck, though it doesn’t lubricate as well so if […]

How many mph is a 4 40 Mile? Popular Road Race Distances mph 1km 1 mile 7.7 4:51 7:48 7.8 4:47 7:42 7.9 4:43 7:36 8 4:40 7:30 How many miles is 1 hour? approximately 0.6818 miles per hour. exactly 1.09728 km per hour. How many miles is 2 hours? If you go 70 miles […]

How far can a load extend beyond your car? The load must not extend more than 1.275 metres either side from the centre line of the vehicle. The maximum width of the vehicle is 2.55m. If your load extends behind the back of your vehicle by more than 1m then you’ll need to attach a […]

What are different types of productivity? Types of Productivity Measures Capital Productivity. Capital productivity tells you the ratio of products or services to physical capital. Material Productivity. Another ratio is material productivity. Labor Productivity. Total Factor Productivity. Simple Productivity Output. 360-Degree Feedback. Time Tracking. Efficiency. How do you express productivity? Productivity is usually expressed as […]

What is the full form of laser? Light amplification by stimulated emission of radiation What are the uses of laser technology? Lasers are widely used for laser material processing in manufacturing, e.g. for cutting, drilling, welding, cladding, soldering (brazing), hardening, surface treatment, marking, engraving, micromachining, pulsed laser deposition, lithography, etc. What is Laser What are […]