Category: Physics

What are two substances? Two Main Types of Pure Substances Elements and compounds are the two types of pure substances. Examples of common elements include carbon, nitrogen and hydrogen. They consist of one type of atom and cannot break down into something else. Every pure carbon substance, for example, has the same particles in it. […]

Is earthquake epicenter randomly distributed on Earth? Earthquake epicentres are not randomly distributed on earth. They occur wherever two tectonic plates meet. The collision of these plates leads to the occurrence of earthquakes and volcanoes. About 75% of world’s largest volcanoes and 90% of earthquakes occur along the Pacific Ring of Fire. How do you […]

Is Yahweh mentioned in the Bible? In Genesis 4:26 (in the J story), it is said, “At that time people began to call on the name of yhwh.” In E, on the other hand, the name yhwh is never used until Exodus 3:14-15 when God gives Moses the name by which he is to announce […]

Why protein is not a genetic material? For a material to be genetic material, it has to replicate, it must be stable both structurally and chemically stable. Furthermore, it must be able to provide a scope for mutations eventually, key for evolution. Where are proteins made? Ribosomes Are proteins made in cytoplasm? Proteins all begin […]

What happens to the energy when you place a liquid in the freezer? When water freezes it gives up some of the water’s energy. This energy that is given up is the latent heat of freezing. When the water was freezing latent heat of freezing energy was being released. Energy is being transferred even through […]

What is the SI unit of time? second. The second, symbol s, is the SI unit of time. It is defined by taking the fixed numerical value of the cesium frequency ΔνCs, the unperturbed ground-state hyperfine transition frequency of the cesium 133 atom, to be 9 192 631 770 when expressed in the unit Hz, […]

Is broccoli a fruit? Vegetable Is an eggplant a berry? Fact: While it’s generally thought of as a vegetable, eggplant is actually a fruit. The eggplant, aubergine, melongene, brinjal or guinea squash is a plant of the family Solanaceae. Eggplant is grown for its usually egg-shaped fleshy fruit and is eaten as a cooked vegetable. […]

What are three properties of acids? Acids Aqueous solutions of acids are electrolytes, meaning that they conduct electrical current. Acids have a sour taste. Acids change the color of certain acid-base indicates. Acids react with active metals to yield hydrogen gas. Acids react with bases to produce a salt compound and water. How many types […]

What are 3 basic characteristics of molecular compounds? Physical Properties of Molecular Compounds Property Ionic Compounds Molecular Compounds Physical state at room temperature Solid Gas, liquid, or solid Water solubility Usually high Variable Melting and boiling temperatures Generally high Generally low Electrical conductivity Good when molten or in solution Poor Why do molecular compounds have […]

How do you get temporary power? A temporary power permit must be obtained. After it has been placed in the ground with panel and secured to the ground according to local codes for pole height and depth, your local building inspector will come to your sight and approve or require change to get approved. What […]