Category: Physics

What is the best design for an intervention study? The most common and strongest interventional study design is a randomized controlled trial, however, there are other interventional study designs, including pre-post study design, non-randomized controlled trials, and quasi-experiments (1,5,13). What are the types of interventions? Interventions are Generally Categorized into Four Main Types The Simple […]

Which metal has highest heat capacity? Which metal heats up fastest, Aluminum, Copper, or Silver? 100. Specific heat capacity: Aluminum 0.91 J/g°C Copper 0.39 J/g°C Silver 0.240 J/g°C Lead 0.160 J/g°C. Specific heat capacity means the amount of heat required to raise the temperature of 1 grams of substance by 1 °C. Does gold heat […]

How do you calculate the power of a light bulb? In a resistor, it is dissipated as heat, and in a light bulb, it is dissipated as heat and light. P=IV=(VR)V=V2R. P=IV=I2R=V2R. The power supplied from the battery is equal to current times the voltage, P=IV. How much power does each bulb dissipate? 40 watts […]

What is Quark similar to? Quark is mild and creamy, and is often likened to products like yogurt and cottage cheese. We think it is a little bit like a mix of both. It is mild, and neither sweet nor sour, like cottage cheese, but with the texture of a thick, yogurt. Is Quark like […]

Does all liquid rise in a capillary tube? A glass capillary tube is dipped in a beaker containing liquid (say water) whose surface tension is to be measured. Due to surface tension, the liquid level rises up inside the capillary. The difference between the two readings gives the height of the water column inside capillary […]

What is the charge of sodium oxide? Notice that the sodium cation carries a 1+ charge and the oxide anion carries a 2− charge, which is why you need 2 sodium cations to balance the overall negative charge coming from 1 oxide anion. How is sodium oxide used in glass? It is used in ceramics […]

What is the basic principle of flying? The faster an airplane moves, the more lift there is. When the force of lift is greater than the force of gravity, the airplane is able to fly, and because of thrust, the airplane is able to move forward in flight. According to Newton’s third law of motion, […]

How do you describe a beautiful place? Words used to describe attractive places or views – thesaurus picturesque. adjective. a picturesque place or scene is attractive, especially because it is old and interesting. unspoiled. adjective. pretty. adjective. panoramic. adjective. favoured. adjective. picture-postcard. adjective. How do you describe a beautiful girl in a paragraph? She had […]

Is krypton a real thing? Krypton (from Ancient Greek: κρυπτός, romanized: kryptos ‘the hidden one’) is a chemical element with the symbol Kr and atomic number 36. It is a colorless, odorless, tasteless noble gas that occurs in trace amounts in the atmosphere and is often used with other rare gases in fluorescent lamps. Can […]

Why did Earth lose its first atmosphere? Earth’s original atmosphere was probably just hydrogen and helium, because these were the main gases in the dusty, gassy disk around the Sun from which the planets formed. Actually, they moved so fast they eventually all escaped Earth’s gravity and drifted off into space. What would happen if […]