Category: Physics

What is the example of not compound? A non-compound means which does not combine with two elements. Some examples are Br2 which is a diatomic molecule. How do you tell the difference between a molecule and a compound? A molecule is a group of two or more atoms held together by chemical bonds. A compound […]

What gas diffuses the fastest? The rate of effusion for a gas is inversely proportional to the square-root of its molecular mass (Graham’s Law). The gas with the lowest molecular weight will effuse the fastest. The lightest, and therefore fastest, gas is helium. Which gas diffuses faster hydrogen or helium? Graham’s law of diffusion states […]

What is the value of 10 11 g in SI units? In SI units, G has the value 6.67 × 10-11 Newtons kg-2 m2. The direction of the force is in a straight line between the two bodies and is attractive. Thus, an apple falls from a tree because it feels the gravitational force of […]

Are lines of best fit always straight? Mentor: A line of best fit represents ALL of the data in a scatter plot so it must include the outliers in order to be an accurate representation. Student: The line of best fit will touch all of those points because those points make a straight line. The […]

How do you collect gas over water? A common way to determine the amount of gas present is by collecting it over water and measuring the height of displaced water; this is accomplished by placing a tube into an inverted bottle, the opening of which is immersed in a larger container of water. Why do […]

Which of the following measures is most effective for preventing pulmonary embolism in patients who are recovering from major surgery? Using a blood-thinning drug is the most effective way to prevent VTE, particularly after major surgery, even if a patient is walking and using SCDs. What is the major role of neutrophils in acute respiratory […]

What is energy in a food web? Energy is transferred between organisms in food webs from producers to consumers. The energy is used by organisms to carry out complex tasks. The vast majority of energy that exists in food webs originates from the sun and is converted (transformed) into chemical energy by the process of […]

How does heat from the sun reach US Class 7? Heat from the Sun reaches us through the process of radiation. There is millions of miles of empty space between the Earth and the Sun; therefore, only through radiation can heat be transferred to the Earth from the Sun, as it does not require any […]

How long does an ice cube take to melt? 45 to 60 minutes Which shape of ice cube melts the fastest? rectangular ice cube Does ice melt at 32 degrees? At temperatures above 32°F (0°C), pure water ice melts and changes state from a solid to a liquid (water); 32°F (0°C) is the melting point. […]

What app can answer all question? Called Socratic, the free app uses artificial intelligence to determine what information you need, and returns ‘explainers’ and videos to give you step-by-step help. The firm says it’s like having a ‘digital tutor in your pocket,’ generating answers from a community of teachers and students. Can I ask Google […]