Category: Physics

Can I get good at math? Studies show being good at math is a matter of hard work just as much, if not more, than innate talent. You can become good at math simply by dedication. Take time each day to practice math until the concepts start to click for you. You should also work […]

What does a dead testicle feel like? When the testes die, the scrotum will be very tender, red, and swollen. Often the patient won’t be able to get comfortable. Any pain or discomfort in the testes is a sign to get medical help right away. Call your doctor even with no swelling or change in […]

What type of process is combustion? Combustion is a chemical process in which a substance reacts rapidly with oxygen and gives off heat. The original substance is called the fuel, and the source of oxygen is called the oxidizer. The fuel can be a solid, liquid, or gas, although for airplane propulsion the fuel is […]

Can we use both of them? “Both” implies “Both of them.” They are interchangeable in English among native speakers. They can be interchangeable but it may depend on the context. Q: Do you want David or John to join us? A: Both of them. How do you use both correctly? When we use both as […]

Which type of cooling tower is best? their design flexibility and cost effectiveness, make mechanical draft cooling towers ideally suited to most cooling duties and plant requirements. Unlike natural draft cooling towers, these towers use fans to circulate air through the tower. Propeller fans and centrifugal fans are most often used. What two types of […]

Is entropy positive or negative? Entropy, S, is a state function and is a measure of disorder or randomness. A positive (+) entropy change means an increase in disorder. The universe tends toward increased entropy. All spontaneous change occurs with an increase in entropy of the universe. Why is entropy generation always positive? A measure […]

Is an LED a passive component? Some examples of active devices include solenoids, relays, LEDs, and microcontrollers or any other integrated chip that uses an external supply voltage (or current) to perform work or the intended function. LEDs are light emitting diodes, and we state above that diodes are considered passive. What are the different […]

What is projectile motion Give 5 examples of projectile motion? Examples of projectile motion:-) ☆ An object dropped from an aeroplane. A bullet fired from a rifle. ☆A jet of water coming out from the side all offer vessel. ☆ Stone thrown horizontally from the top of a building. What is a projectile give its […]

What is the mass of wood? around 1500 kg/m3 What are 3 characteristics of wood? The main physical properties of wood include: color, luster, texture, macro-structure, odor, moisture, shrinkage, internal stresses, swelling, cracking, warping, density, sound – electro – thermal conductivity. Сolor, shine, texture and macrostructure determine the appearance of wood. Is bamboo heavier than […]

How do you write a professional thank you note? What to Include in a Thank-You Letter Address the person appropriately. At the start of the letter, address the person with a proper salutation, such as “Dear Mr. Say thank you. Give (some) specifics. Say thank you again. Sign off. Send it as soon as possible. […]