Which gas is suitable for gas atomization? Various gases are used for atomization: helium [31]; nitrogen [32] under 0.45 and 0.5 MPa pressure, respectively; and argon [30] under 9.8 MPa pressure. Argon was used for the atomization of a number of Al-Fe-Cr-Nb system alloys [33]. What is powder metallurgy PDF? Powder metallurgy – science of […]
Is gold a good heat reflector?
Is gold a good heat reflector? Surfaces designed to reflect a broad spectrum of electro-magentic waves, (shiny things generally, like mirrors or polished metal) specifically infrared wavelengths are good reflectors of radiant heat. Gold is the best material for reflecting radiant heat. Does gold Harden work? Heat: In general, Yellow Gold can be hardened by […]
When a ball is thrown up vertically with velocity u it attains a maximum height h What should be the velocity so that maximum height becomes 2h?
When a ball is thrown up vertically with velocity u it attains a maximum height h What should be the velocity so that maximum height becomes 2h? Thus maximum height attained becomes four times (4H) when the initial velocity is increased by 2 times. When a ball thrown up with velocity v0 it reaches the […]
What happens when the frequency of a wave decreases?
What happens when the frequency of a wave decreases? As the frequency decreases, the wavelength gets longer. There are two basic types of waves: mechanical and electromagnetic. What happens to the wavelength of a wave when you increase the amplitude? If the frequency increases, then the wavelength will be shorter, because there are more waves […]
What happens when you exercise everyday?
What happens when you exercise everyday? Regular physical activity can improve your muscle strength and boost your endurance. Exercise delivers oxygen and nutrients to your tissues and helps your cardiovascular system work more efficiently. And when your heart and lung health improve, you have more energy to tackle daily chores. Is it good to do […]
What was a primary factor in the feudal system establishment?
What was a primary factor in the feudal system establishment? Using whatever equipment the vassal could obtain by virtue of the revenues from the fief, he was responsible for answering calls to military service on behalf of the lord. This security of military help was the primary reason the lord entered into the feudal relationship. […]
Is High Blood Pressure a circulatory disorder?
Is High Blood Pressure a circulatory disorder? Many circulatory system diseases are linked to each other. For example, high blood pressure damages the blood vessels, which can lead to other circulatory problems. Is blood a part of the circulatory system? The circulatory system is a network consisting of blood, blood vessels, and the heart. This […]
How old is the oldest living thing on earth?
How old is the oldest living thing on earth? 5,000 years old What animal on earth lives the longest? Ming, a quahog clam, died at the age of 507 when researchers tried to dredge the bivalve up from Icelandic waters. The quahog’s life-span is usually about 225 years. (Also see “405-Year-Old Clam Called Longest-Lived Animal.”) […]
How can I be perfect in physics?
How can I be perfect in physics? Best Ways to Study and Do Well in Physics: Good understanding of the basics: Memorizing basic equations: Strengthening your math skills: Studying derivations: Analyze problems: Focus on important aspects of each problem: Utilize drawings: Making use of correct units: Is physics harder than math? General perception: Physics is […]
What causes persistence of vision?
What causes persistence of vision? Persistence of vision works because the human eye and brain can only process 10 to 12 separate images per second, retaining an image for up to a fifteenth of a second. If a subsequent image replaces it in this period of time it will create the illusion of continuity. Where […]