Is campfire heat radiation or convection? While watching the campfire you feel the heat of the glowing fire via radiation. Heat transfer in fluids generally takes place via convection. What kind of energy does the earth receive directly from the sun? solar radiation Why can the sun transmit heat to earth only by radiation? The […]
Why do boats float and not sink?
Why do boats float and not sink? If the downward gravitational force is less than the upward buoyancy force then the object floats, otherwise it sinks. That is, if an object weighs less than the amount of water it displaces then it floats otherwise it sinks. A boat floats because it displaces water that weighs […]
What is the formula for potential and kinetic energy?
What are the 3 principles of training?
What are the 3 principles of training? In summary, the three principles of training that should be followed in developing your fitness program are overload, progression, and specificity. When you increase the repetitions, amount of weight, or length of time in an exercise you’re accustomed to, you’re applying overload. Which principle do you feel is […]
How do you get accurate measurements?
How do you get accurate measurements? Answer: Acquire one or more known standards from a reliable source. … Run your measuring process or assay, using your instrument, on those standards; record the instrument’s results, along with the “true” values. … Plot your instrument’s readings against the true values and fit the best line possible to […]
What is the formula of thickness?
Can live without physics?
Can live without physics? We can conclusively say that physics governs our lives and ease our day-to-day operations. Without the understanding of physics today, many applications in physics such as electronics and mechanics would not exist today. We would be living without modern technology or instruments. Who Kept name physics? Aristotle Who are the greatest […]
What is the main source of electromagnetic waves?
What is the main source of electromagnetic waves? the sun Which electromagnetic waves have the highest energy? Gamma rays have the highest energies and shortest wavelengths on the electromagnetic spectrum. What is a really good example of electromagnetic radiation? Examples of EM radiation include radio waves and microwaves, as well as infrared, ultraviolet, gamma, and […]
Is darkness a form of light?
Is darkness a form of light? Darkness, the polar opposite of brightness, is understood as a lack of illumination or an absence of visible light. Human vision is unable to distinguish color in conditions of either high brightness or very low brightness. What came first darkness or light? Light is primarily defined as the thing […]
Why is it important for you to create a value proposition?
Why is it important for you to create a value proposition? An effective value proposition tells the ideal customer why they should buy from you and not from the competition. Improves customer understanding and engagement: A powerful value proposition helps your customers truly understand the value of your company’s products and services. What is the […]