Category: Physics

What is the resistance of an ideal voltage source? zero How does battery discharge? In a fully discharged battery, substances in the battery maintain chemical equilibrium without any electrochemical reaction. However, it is possible to return to the state before discharge by causing a chemical reaction that extracts electricity from the positive electrode and gives […]

Which is more elastic steel or rubber? If the same amount of force is applied to a steel wire and to a wire made of rubber of same length and cross-sectional area, the extension of rubber wire is easier than the extension of the steel wire. Therefore, with the help of Young’s modulus, it can […]

How is Atan calculated? The Atan function is a Number Request that calculates the value (in radians) of the angle whose tangent equals a specified number (the inverse of the Tan function). To convert X from radians into degrees, multiply it by180/Pi. To get the value of Pi, type “Pi” in the formula. What is […]

How do starfish get nutrients? A starfish feeds by first extending its stomach out of its mouth and over the digestible parts of its prey, such as mussels and clams. The prey tissue is partially digested externally before the soup-like “chowder” produced is drawn back into its 10 digestive glands. What do starfish eat for […]

What are the unique features of eCommerce? The characteristics of eCommerce technology Global reach. Location. Interactivity. Universal standards. Personalization and adaptation. Social technology. Information density. Wealth. What are the disadvantages of ecommerce for customers? Disadvantages of eCommerce Customers have concerns about privacy and security. Some consumers are still wary about giving out personal information, especially […]

Is it easier to balance a long rod with a mass? Is it easier to balance a long rod with a mass attached to it when the mass is closer to your hand or when the mass is farther away? It is easier when the mass is closer to your hand. It is equally easy […]

How do I know if my clutch cable is broken? Common symptoms of a snapped clutch cable: Clutch pedal sinks freely to the floor – When the clutch cable snaps, there will be no resistance when the pedal is pressed down. Car will not change gears – When the clutch cable snaps, there will be […]

What did NASA invent that we use today? Thank NASA For These Inventions We Use Everyday Insulation. Mylar, a heat-reflecting plastic shield coated in aluminum, was designed by NASA in the 1950’s to protect spacecrafts from the sun’s heat. Cordless vacuum. Super Soaker. Memory foam. Scratch resistant glasses. Treadmill. Invisible braces. Infrared ear thermometer. How […]

What is the definition of a turnkey business? A turnkey business is a business that is ready to use, existing in a condition that allows for immediate operation. The term “turnkey” is based on the concept of only needing to turn the key to unlock the doors to begin operations. What makes turnkey franchise differ […]

What words do similes use? The main difference between a simile and metaphor is that a simile uses the words “like” or “as” to draw a comparison and a metaphor simply states the comparison without using “like” or “as”. An example of a simile is: She is as innocent as an angel. An example of […]