Category: Physics

What process caused the liquids to change from blue to yellow? The process that caused the color change is called cellular respiration. During this process, the snail exhales carbon dioxide, which combines with water to form a weak carbonic acid, which in turn changes the color of the water from blue to yellow. What is […]

What does it mean when work is 0? When force and displacement are perpendicular to each other, or when force or displacement is zero. What is negative work done with example? Negative work follows when the force has a component opposite or against the displacement. Negative work removes or dissipates energy from the system. Two […]

When ice melts Does entropy increase or decrease? Entropy (S) by the modern definition is the amount of energy dispersal in a system. Therefore, the system entropy will increase when the amount of motion within the system increases. For example, the entropy increases when ice (solid) melts to give water (liquid). Is melting of ice […]

How do you calculate how much energy is absorbed by water? To calculate the energy absorbed by the water you must calculate the “Q” for water or Energy absorbed or given off. In this case it is absorbed. Finally, multiply by the either 4.184 J/g Co when calculating energy for joules or multiply by 1 […]

How do you calculate the volume of a gas pipe? The formula for the volume of cylinder is: cylinder volume = π * radius² * height . For a pipe use its length instead of height: pipe volume = π * radius² * length , where radius = inner diameter/2 . The volume of a […]

What are the different types of research variables? Parts of the experiment: Independent vs dependent variables Type of variable Definition Independent variables (aka treatment variables) Variables you manipulate in order to affect the outcome of an experiment. Dependent variables (aka response variables) Variables that represent the outcome of the experiment. Is a classification of a […]

What type of energy is leaving the generator? From Kinetic to Electrical Energy Regardless of the type of current, all generators change kinetic energy to electrical energy. What is the difference between AC generator and DC motor? Uses & Design Differences AC and DC generators both use electromagnetic induction to generate electricity. An AC generator […]

What is the best example of an open system? An open system is one which can allow mass as well as energy to flow through it’s boundaries, example: an open cup of coffee. A closed system allows only energy transfer but no transfer of mass. Example: a cup of coffee with a lid on it, […]

Do snake plants like to be crowded? Potting Your Snake Plant They grow faster in a smaller pot because they like a crowded root system. If you need to get the plastic pot off your plant without damaging the roots, just take a pair of scissors and cut the pot away from the root system. […]

What percentage of bottled water is recyclable? only 12 percent How much waste is recycled in the world? The Current National Picture The total generation of municipal solid waste (MSW) in 2018 was 292.4 million tons (U.S. short tons, unless specified) or 4.9 pounds per person per day. Of the MSW generated, approximately 69 million […]