Is it OK to use microwave everyday? (Of course, the heat in a microwave isn’t harmless — so you should never put, say, a living creature inside of a microwave. “Microwaves are part of the electromagnetic waves we’re exposed to daily. When you bake bread, you’re exposed to electromagnetic waves and infrared energy from the […]
Is 1 km per second fast?
Is 1 km per second fast? Enter the speed in kilometers per hour below to get the value converted to kilometers per second….Kilometer Per Hour to Kilometer Per Second Conversion Table. Kilometers Per Hour Kilometers Per Second 1 km/h 0.000278 km/s 2 km/h 0.000556 km/s 3 km/h 0.000833 km/s 4 km/h 0.001111 km/s How do […]
What are abrasives give examples?
What are abrasives give examples? Some naturally occurring abrasives are: Calcite (calcium carbonate) Emery (impure corundum) Diamond dust (synthetic diamonds are used extensively) Novaculite. Pumice. Iron(III) oxide. Sand. Corundum. Which is the hardest synthetic abrasive? diamond Which type of abrasives are the strongest? Diamond Why is diamond a good abrasive? Diamond is useful as an […]
What kind of grass grows in the tundra?
What kind of grass grows in the tundra? Grasses in the Tundra Polar Grass (Arctagrostis latifolia) Polar grass grows from sea level to 5,500 feet in elevation with two subspecies growing in different parts of the world. Ice Grass (Phippsia algida) Vahl’s Alkali Grass (Puccinellia vahliana) Cottongrass (Eriophorum callitrix) Do pine trees grow in the […]
What does PreCambrian mean in Greek?
What does PreCambrian mean in Greek? Precambrian* – all the time prior to the start of the Cambrian (not a formal era/eon name) * synonymous with “Cryptozoic” – Greek for “hidden life” Proterozoic eon – Greek for “former life” What does period mean in geologic time scale? Period, in geology, the basic unit of the […]
Why do birds chirp at 2am?
What are two ways to increase kinetic energy?
What are two ways to increase kinetic energy? If you double the mass of an object, you double the kinetic energy. If you double the speed of an object, the kinetic energy increases by four times. The word “kinetic” comes from the Greek word “kinesis” which means motion. Kinetic energy can be passed from one […]
What is the best evidence in the text for the prediction that Champollion will eventually figure out the T hieroglyph?
What is the best evidence in the text for the prediction that Champollion will eventually figure out the T hieroglyph? The only hieroglyph that confused Champollion was the one for “T,” which was different in the two names. What is the best evidence in the text for the prediction that Champollion will eventually figure out […]
What are 2 types of diffusion?
What are 2 types of diffusion? Diffusion can be classified into two main types: Simple diffusion and facilitated diffusion. Why does simple diffusion happen? The kinetic energy of the molecules results in random motion, causing diffusion. In simple diffusion, this process proceeds without the aid of a transport protein. it is the random motion of […]
How do volcanologists predict volcanoes?
How do volcanologists predict volcanoes? Earthquakes. Moving magma shakes the ground, so the number and size of earthquakes increases before an eruption. A volcano that is about to erupt may produce a sequence of earthquakes. Scientists use seismographs that record the length and strength of each earthquake to try to determine if an eruption is […]