Category: Physics

Is there forces of attraction among the particles in all matter? Particles of matter of the same substance, such as the same element, are attracted to one another. The force of attraction tends to pull the particles closer together. The particles need a lot of kinetic energy to overcome the force of attraction and move […]

How do you pick up a glass of water upside down? Move the glass over the container or sink. Gently place your hand on the paper, then flip the glass over. Remove your hand from the bottom and watch in amazement as the paper stays covering the glass and the water doesn’t spill out. How […]

How can I climb Mount Everest for free? In order to climb Mount Everest for free, you will need a sponsor. Start with local companies, build up and show them a strong social media presence. Pitch them on not only your reach but an exciting or moving story behind the climb. You can also consider […]

What type of reaction is Fe2O3 C –> Co Fe? redox equation What type of reaction is this 2 Fe2O3 3 c3 CO2 4 Fe? Answer Expert Verified. The given reaction is a redox reaction as it involves both oxidation and reduction reactions simultaneously. Fe2O3 is reduced, while C is oxidised. What type of reaction […]

What does Lenz law state? Lenz’s law, in electromagnetism, statement that an induced electric current flows in a direction such that the current opposes the change that induced it. This law was deduced in 1834 by the Russian physicist Heinrich Friedrich Emil Lenz (1804–65). Lenz’s law. What are the four Maxwell’s equations? The statements of […]

What are 4 reasons cells divide? Terms in this set (4) Food, Waste, and Gas Exchange. They need to maintain a workable ratio of surface area to volume to allow an efficient transfer of materials in and out of the cell. Growth. In order for an organism to grow, they must divide so they can […]

What happens to intrathoracic pressure during inspiration? Inspiration drops intrathoracic pressure, dilates the thoracic vena cava, and acutely decreases atrial filling. Cardiac output falls, and consequently arterial pressure falls. The drop in arterial pressure reduces stretch on the arterial baroreceptors, causing a reflex increase in heart rate. Why does BP decrease during inspiration? As the […]

Is python bite poisonous? It is a non-venomous constrictor, with adults averaging 3–6 m in length. They reside in forests and nature reserves and occasionally venture into the sewer system. They are usually spotted in large drains and at construction sites. Python bites are rare, with 1–2 cases reported a year. Can you survive an […]

Which coral reefs are in danger? Almost 95% of coral reefs in Southeast Asia are threatened. Indonesia has the largest area of threatened coral reefs, with fishing threats being the main stressor on coral reefs. More than 75% of the coral reefs in the Atlantic are threatened. How do humans impact the coral reef? Pollution, […]

Can a nuclear power plant power a city? A 1,000-megawatt power plant can meet the needs of a city the size of Boston or Seattle. ∎ Nuclear power plants require little land vs. and potentially more smog. How much electricity can 1 gram of uranium produce? The fission of 1 g of uranium or plutonium […]