What are the impacts of fire hazards? The side effects of a fire also represent a hazard. Firstly the fire will deplete oxygen from the surrounding atmosphere. Most casualties from a fire die from the smoke and lack of oxygen. Secondly, especially where plastics are being burnt, the fumes could be toxic, and anyone exposed […]
What are examples of populations?
What are examples of populations? Population is the number of people or animals in a particular place. An example of population is over eight million people living in New York City. What are all the individuals of a species that live in an area called? A population comprises all the individuals of a given species […]
Why a Dyson sphere is impossible?
Why a Dyson sphere is impossible? Maddox points out that a Dyson sphere is physically impossible. To keep this shell in orbit around the Sun at any distance in the Habitable Zone would require some force counteracting gravity and pushing outwards on the sphere. In stars, this is radiation pressure. Is the Death Star a […]
Why commutator is needed?
Why commutator is needed? All generators produce a sine wave, or AC currents when the rotor turns in the magnetic field. The commutator on the DC generator converts the AC into pulsating DC. The commutator assures that the current from the generator always flows in one direction. What is a commutator in math? In mathematics, […]
What is the electron carrier for photosynthesis called?
What is the electron carrier for photosynthesis called? NADPH What substances are recycled between photosynthesis and cellular respiration? The four substances recycled during photosynthesis and respiration are: carbon dioxide (CO2), which is emitted as waste in cellular respiration and used by plants to make glucose, oxygen (O2), which is emitted as waste by plants and […]
How did the civil rights movement achieve some of its goals of equality?
How did the civil rights movement achieve some of its goals of equality? Civil Rights Act of 1964 King and other civil rights activists witnessed the signing. The law guaranteed equal employment for all, limited the use of voter literacy tests and allowed federal authorities to ensure public facilities were integrated. What strategies were used […]
How many nodes are in a 2p orbital?
Does oxidation gain oxygen?
Does oxidation gain oxygen? The terms oxidation and reduction can be defined in terms of the adding or removing oxygen to a compound. while this is not the most robust definition, as discussed below, it is the easiest to remember. Oxidation is the gain of oxygen. Reduction is the loss of oxygen. Why can’t oxidation […]
Which is greatest out of static friction limiting friction and kinetic friction?
Which is greatest out of static friction limiting friction and kinetic friction? Static friction is acting due to the body tends to move when a force is acting on it. Limiting friction is the friction acting on a body when it is about to start moving. Commonly, limiting friction is the highest. Where μs the […]
What is the surface tension of ethanol?
What is the surface tension of ethanol? 415. Ethanol–Mercury. 20 °C. 389. Water–1,2-Dichloroethane. Which has more surface tension water or honey? Both viscosity and surface tension are dependent on the intermolecular forces between the molecules of the liquid. Honey, while being more viscous then water, doesn’t have higher surface tension. Which has higher surface tension […]