What are the five kinematic equations? Building on what you have learned so far and what Galileo presented, we have what my physics teacher, Glenn Glazier, liked to call the Five Sacred Equations of Kinematics for constant acceleration. In these equations, v is velocity, x is position, t is time, and a is acceleration. Remember, […]
How does depression change your brain?
How does depression change your brain? There’s growing evidence that several parts of the brain shrink in people with depression. Specifically, these areas lose gray matter volume (GMV). That’s tissue with a lot of brain cells. GMV loss seems to be higher in people who have regular or ongoing depression with serious symptoms. What are […]
Why is osmium dangerous?
Why is osmium dangerous? Chemical dangers: The substance decomposes on heating producing fumes of osmium. The substance is a strong oxidant and reacts with combustible and reducing materials. Reacts with hydrochloric acid to form toxic chlorine gas. The substance is corrosive to the eyes, the skin, and the respiratory tract. What makes osmium unique? A […]
Which seeds have wings?
Which seeds have wings? Some examples of trees with winged seeds are pine, maple, jacaranda and catalpa. Pines. Some pine trees have small seeds with papery wings that allow the seed to rotate as it falls out of the woody female cone when it opens. Maples. Maples (Acer spp.) have propeller-type winged fruits. Bignonia Family […]
Can the mind exist without the body?
Can the mind exist without the body? It is possible one’s mind might exist without one’s body. One’s mind is a different entity from one’s body. What does Descartes think of the soul? Descartes considered the body and the soul to be ontologically separate but interacting entities, each with its own particular attributes. He then […]
Why are waves higher in shallow water?
Why are waves higher in shallow water? Because deep-water waves do not interact with the ocean bottom as they travel, their speed is independent of the water depth. But as waves enter shallow water, interaction with the bottom alters the waves. Wave speed decreases, wavelength shortens and wave height increases. Can deep water waves and […]
What is evaporation and examples?
What is evaporation and examples? Evaporation is defined as the process in which the state of water from liquid to gaseous or to vapour state takes place. The rate of evaporation is dependent on the temperature. As the temperature increases, the evaporation rate increases. The melting of an ice cube is an example of evaporation. […]
What is the difference between linear thermal expansion and volume thermal expansion?
What is the difference between linear thermal expansion and volume thermal expansion? B20. What is the difference between linear thermal expansion and volume expansion? Linear thermal expansion defines the fractional increase in length, whereas the volumetric expansion defines the fractional increase in volume per unit rise in temperature. Does concrete expand with heat? Changes in […]
How do you know if the egg is fertilized after ovulation?
How do you know if the egg is fertilized after ovulation? Some women may notice symptoms as early as 5 DPO, although they won’t know for certain that they are pregnant until much later. Early signs and symptoms include implantation bleeding or cramps, which can occur 5–6 days after the sperm fertilizes the egg. Other […]
Which best describes reflection and refraction in both reflection and refraction?
Which best describes reflection and refraction in both reflection and refraction? In both reflection and refraction, rays bounce off a boundary. In reflection, rays bounce off a boundary, and in refraction, rays pass through a boundary. In refraction, rays bounce off a boundary, and in reflection, rays pass through a boundary. Why is refraction called […]