Category: Physics

What are the steps involved in hearing? The Steps of Hearing Outer Ear. Sound waves, which are vibrations, enter through the outer ear and reach the middle ear to vibrate the eardrum. Middle Ear. The eardrum then vibrates the ossicles, which are small bones in the middle ear. Inner Ear. Auditory Nerve. How can you […]

Who runs the food industry? Only 10 companies control almost every large food and beverage brand in the world. These companies — Nestlé, PepsiCo, Coca-Cola, Unilever, Danone, General Mills, Kellogg’s, Mars, Associated British Foods, and Mondelez — each employ thousands and make billions of dollars in revenue every year. How the fast food industry has […]

What is unique about experiments? As we’ve noted before, science is unique because the results of its experiments can be repeated. These changing quantities are called variables, and an experiment usually has three kinds: independent, dependent, and controlled. For more detail, Science Buddies has definitions and examples of the different variables. What two things explode […]

When using a microscope it is best to start with? ALWAYS use both hands when picking the microscope up and moving it from one place to another. 3. When focusing on a slide, ALWAYS start with either the 4X or 10X objective. Once you have the object in focus, then switch to the next higher […]

How do you calculate nodal planes? Angular nodes (or nodal planes) can be found simply by determining l . For a 2p orbital, l=1 , so there is 1 angular node. However, n−l−1=2−1−1=0 , so it has 0 radial nodes. How many nodal planes are in 1s orbital? 2 How many nodal planes are in […]

Can 2 GFCI outlets share a neutral? NO ! You can’t share the neutral on the output of the GFCI. It must only go to the outlets being protected. If you try to share this neutral your GFCI will not work and will trip immediately. Can you get a shock off the neutral wire? No. […]

What was the atmosphere most heated by? Due to the chemical composition of the earth’s atmosphere, most of the infrared radiation emitted by the warm surface never reaches space. Instead the radiation is reflected or absorbed by compounds known as greenhouse gasses. When these compounds absorb the infrared radiation from the surface, the atmosphere heats […]

What would a weak pressure gradient indicate? If the pressure gradient is weak, the wind speed is light. (See fig. 3-7.) Figure 3-9 shows that the flow of air is from the area of high pressure to the area of low pressure, but it does not flow straight across the isobars. What is the difference […]

What are the 2 types of innate behaviors? Innate behavior is a behavior an organism is born with. There are two types of innate behavior reflex and instinct. A reflex is an automatic response that does not involve a message from the brain. Reflex Examples: Sneezing, shivering, yawning, quickly pulling your hand away from a […]

How do you politely not answer a personal question? 17 Amazing Tricks for Dodging Unwanted Questions Enlist the help of a friend. Sometimes, you just know someone is going to ask you an unwanted question. Restate—and reframe—the question. Deflect with a joke. Offer advice instead of an answer. Deflect the question back to the asker […]