Why do wheels have friction? A wheel or ball on a surface is held there by static sliding friction. In order to start the rolling motion, a force or torque must be applied to the wheel. The force of the static sliding friction prevents the wheel from sliding and thus initiates the rolling motion. Is […]
What is the relationship between molecular motion and pressure?
What is the relationship between molecular motion and pressure? The greater the molecular motion, the greater the pressure the molecules exert. What is heat in terms of molecular motion? Molecules are in constant motion and so they possess kinetic energy. Molecules at a higher temperature have more kinetic energy i.e. they move faster. Heat is […]
What gases are least ideal?
What gases are least ideal? 1 Answer. Sulfur dioxide should be the least volatile, have the greatest intermolecular interaction, and thus its behaviour is LEAST like the ideal. What is the difference between ideal gas and non ideal gas? Real gas and Ideal gas. As the particle size of an ideal gas is extremely small […]
What will the precipitin test tell a forensic scientist?
What will the precipitin test tell a forensic scientist? Precipitin test identifies the presence of proteins that are found only in human blood. On the surface of red blood cells are molecules (proteins) called antigens. Antigens allow a living system to recognize foreign biological substances, such as infectious agents and allergens. What qualifications do you […]
What is hygroscopic substance give examples?
What is hygroscopic substance give examples? Hygroscopic substances include cellulose fibers (such as cotton and paper), sugar, caramel, honey, glycerol, ethanol, wood, methanol, sulfuric acid, many fertilizer chemicals, many salts (like calcium chloride, bases like sodium hydroxide etc.), and a wide variety of other substances. What is hygroscopic behavior? Hygroscopicity is the capacity of a […]
What should you not say to a lonely person?
What should you not say to a lonely person? 4 Things You Should Never Say To Someone Suffering From Loneliness “You just need to go out more and meet more people.” “You just need more confidence.” “You’ll stop being lonely when you meet your other half.” “You should join a meet-up group or do more […]
Does Salt raise boiling temp of water?
Does Salt raise boiling temp of water? When salt is added, it makes it harder for the water molecules to escape from the pot and enter the gas phase, which happens when water boils, Giddings said. This gives salt water a higher boiling point, she said. “The temperature of saltwater will get hotter faster than […]
Which rainforest layer gets the most sunlight?
Which rainforest layer gets the most sunlight? canopy What type of sunlight does the rainforest get? Tropical Rainforest: Plants Although tropical rainforests receive 12 hours of sunlight daily, less than 2% of that sunlight ever reaches the ground. The tropical rainforest has dense vegetation, often forming three different layers–the canopy, the understory, and the ground […]
Is methane a good fuel source?
Is methane a good fuel source? Methane provides a great environmental benefit, producing more heat and light energy by mass than other hydrocarbon, or fossil fuel, including coal and gasoline refined from oil, while producing significantly less carbon dioxide and other pollutants that contribute to smog and unhealthy air. Is methane safe to breathe? Inhalation: […]
Which climate zone has a short summer and is generally cold and windy?
Which climate zone has a short summer and is generally cold and windy? polar What are the 3 climate zones on Earth? The Earth has three main climate zones: tropical, temperate, and polar. The climate region near the equator with warm air masses is known as tropical. In the tropical zone, the average temperature in […]