Category: Physics

Which is the best example of physical or mechanical weathering? Examples of mechanical weathering include frost and salt wedging, unloading and exfoliation, water and wind abrasion, impacts and collisions, and biological actions. All of these processes break rocks into smaller pieces without changing the physical composition of the rock. Which event is an example of […]

How rare is a fireball? This may sound like a long time, but good data has been collected on only about 800 fireballs so far. Of these, only 4 have been recovered on the ground as meteorites. A meteorite-causing fireball is very rare and must be at least magnitude -8 to have sufficient mass to […]

Which is the most accurate definition of the discipline of psychology? 1. The correct answer is a) the scientific study of behavior and mental processes. Which of the following are major areas of interest in cognitive psychology? Major areas of interest in cognitive psychology include language, attention, memory, decision-making, and problem-solving. Cognitive psychology has many […]

Do phones affect your brain? Smartphones Can Make Your Brain “Lazy” Research shows this overreliance on your smartphone can lead to mental laziness. “If you give people the ability to store information remotely, outside of their brain, they become more dependent on that, which actually can have a negative effect on people’s memory,” Dr. Do […]

Do identical twins have the same fingerprints? The bottom line Identical twins share a lot of similarities in both their genetic makeup and their physical appearances. But, like those who aren’t twins, identical twins all have unique fingerprints. Which is the most rare fingerprint pattern? Arch What is the difference between the core and delta […]

What is the fastest diffusion? Diffusion is fastest through gases, followed by liquid, then plasma, and lastly, solids. In chemistry, diffusion is defined as the movement of matter by the random motions of molecules. How do you know how fast a gas will diffuse? It states that the diffusion rate of a gas is inversely […]

Can you tow boat with cover on? Either way, it’s important to know if it’s okay! The quick answer is Yes… you can definitely tow your pontoon boat (or any boat) with the cover on. This includes making sure it’s the correct size cover, you have enough straps to keep it secure, and also that […]

How damaging is a sonic boom? Damage due to a sonic boom is possible in light building components which have a large surface and consist of a material with a low tensile strength. Damage is very rare at overpressures up to about 500 N/m* and can only occur at points at which there were earlier […]

What happens when a wave goes around a barrier? Diffraction: A wave encountering a small obstacle tends to bend around the obstacle. This bending of the wavefront is called diffraction. When a wave encounters a barrier with an aperture, which is much smaller than the wavelength, the wave bends and spreads out as a spherical […]

What are the 3 types of lubricants? There are three main types of lubricants: oil-based, water-based, and silicone-based. The best lubricant for women depends on their needs. What lube lasts the longest? Coconut Oil What solid lubricant is best? PTFE and graphite are well known as good solid lubricants. They wear off from the friction […]