Category: Physics

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 […]

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 […]

Did California just have a 7.1 earthquake? A magnitude 7.1 earthquake struck southern California on July 5, 2019 at 8:20 p.m. local time (July 6 at 03:20 UTC). This event was centered near the July 4, 2019 magnitude 6.4 earthquake. Map shows past earthquakes and the epicenter of the magnitude 7.1 July 5, 2019 southern […]

Can we convert mass to energy? First discovered by Einstein more than 100 years ago, it teaches us a number of important things. We can transform mass into pure energy, such as through nuclear fission, nuclear fusion, or matter-antimatter annihilation. Can mass be converted into energy or can mass be destroyed? The total mass of […]

How long do coals burn for? about 1 hour Why do coals burn hotter? Coal and charcoal burn much closer to the source and keep the heat more concentrated leading to a higher temperature. The last thing to happen is combustion of the solid fuel, which is the glowing coals, which gives off the most […]

Why is MMHG used? MmHg means millimetres of mercury (Hg = mercury) and is used in EU member states and Switzerland to measure the pressure of body fluids, such as eg blood pressure. It goes back to a time when pressure was measured by means of a mercury column. How do you convert mm Hg […]

What are the 4 eating habits? There are four types of eating: FUEL EATING. This is the only reason we need to eat because food is fuel. JOY EATING. This is eating foods that don’t have nutritional value for our body (desserts, savoury snacks, and the like), but it provides pleasure. FOG EATING. STORM EATING. […]

How do I compare two numbers as a percentage? First: work out the difference (increase) between the two numbers you are comparing. Then: divide the increase by the original number and multiply the answer by 100. % increase = Increase ÷ Original Number × 100. If your answer is a negative number, then this is […]