Category: Physics

Are CRTs dangerous? Color CRTs may contain mercury or other potentially toxic materials. If the CRT is broken or cracked, these materials may be released and pose a risk of toxic exposure. A charged CRT carries high voltage—about 27,000 volts in a color unit. Can a CRT TV kill you? You will see the little […]

What the Lions eat? What do lions eat? Lions usually hunt and eat medium-sized to large hoofed animals like wildebeests, zebras, and antelopes. They occasionally also prey on larger animals, especially sick or injured ones, and eat found meat such as carrion. Which dogs can kill lions? What Dog Can Take Down A Lion? Rottweiler. […]

Should I put my water heater on a timer? A water heater timer can save you money on both your electricity and water bills. For example, if your utility company charges more in the morning or the evening, a timer for your water heater will help reduce the cost per kilowatt of usage. Should I […]

Why does a swing stop swinging? When the swing is raised and released, it will move freely back and forth due to the force of gravity on it. The swing continues moving back and forth without any extra outside help until friction (between the air and the swing and between the chains and the attachment […]

What is the best way to identify a igneous rock? Cooling of the magma can occur beneath the surface (plutonic) or on the surface (volcanic). Igneous rocks can be identified by the determination of the composition and texture of the rock. Once these two characteristics have been identified, the Igneous Rock Identification chart is used […]

What does it mean when the moon is really bright? The moon only seems bright in the night sky because it is so close to the earth and because the trees, houses, and fields around you are so dark at night. In fact, the moon is one of the least reflective objects in the solar […]

How do you reduce 5v to 1.2 V? If the current is constant, then use a series resistor of value 3.8/I ohms where I is the current. If the current is variable, then you can use a couple of low value very high wattage resistors in the ratio of 3.8:1.2 connected in series across the […]

What characteristics are used to identify rocks? The following properties are very useful for identification purposes: Hardness. Cleavage. Luster. Color. Streak rock powder. Texture. Structure. What are the common features of rocks? Rocks are made out of minerals and have many different properties, or characteristics. Streak is the color of a rock after it is […]

How do bones muscles and joints work together? Muscles can pull bones, but they can’t push them back to the original position. So they work in pairs of flexors and extensors. The flexor contracts to bend a limb at a joint. Then, when the movement is completed, the flexor relaxes and the extensor contracts to […]

What is the charge on the other plate of the capacitor? Capacitors do not store charge. Capacitors actually store an imbalance of charge. If one plate of a capacitor has 1 coulomb of charge stored on it, the other plate will have −1 coulomb, making the total charge (added up across both plates) zero. How […]