Can a laser pointer cause fire? Whereas, for a laser pointer all of the light from it can reach your eye in one go if you were to stare into a laser beam. This can be dangerous because all of the energy from the laser beam is depositing on your eye in one go. But […]
What are the four main parts of the sun?
Why COP of heat pump is more than refrigerator?
What are 6 different tests that are used to identify minerals?
What are 6 different tests that are used to identify minerals? Geologists use the following tests to distinguish minerals and the rocks they make: hardness, color, streak, luster, cleavage and chemical reaction. What are the two main types of mineral classification? Minerals are classified based on their crystal form and chemistry. Minerals are divided into […]
Will Dust Bowl happen again?
Will Dust Bowl happen again? More than eight decades later, the summer of 1936 remains the hottest summer on record in the U.S. However, new research finds that the heat waves that powered the Dust Bowl are now 2.5 times more likely to happen again in our modern climate due to another type of manmade […]
Is burning 300 calories a day good?
Is burning 300 calories a day good? The participants who exercised for 30 minutes a day, burning 300 calories, lost an average of 7 pounds. It doesn’t seem to make mathematical sense, but neither do your hunger habits. Researchers found that participants in the 600-calorie category were eating more in each meal and snack. How […]
Is beach replenishment cheap?
Is beach replenishment cheap? Beach nourishment Relatively inexpensive option but requires constant maintenance to replace the beach material as it is washed away. Who pays for beach replenishment? Federally authorized shore protection projects are usually funded with up to 65% federal funds and 35% from the local cost share sponsor. 3 These projects come at […]
What happens when mercuric oxide and potassium nitrate are heated?
What happens when mercuric oxide and potassium nitrate are heated? When mercuric oxide is heated, it decomposes to give mercury and oxygen. Potassium nitrate on heating gets converted into molten potassium nitrite with the release of oxygen. What Happens When mercuric oxide is subjected to heating? Mercury(II) oxide, a red solid, decomposes when heated to […]
Are all projectiles parabolic?
Are all projectiles parabolic? Projectile motion is parabolic because the vertical position of the object is influenced only by a constant acceleration, (if constant drag etc. is also assumed) and also because horizontal velocity is generally constant. Why are parabolas important in real life? The parabola has many important applications, from the design of automobile […]
Which Shield Life is harmful?
Which Shield Life is harmful? The ozone layer in the stratosphere shields life on Earth from most UV-B and UV-C, the most harmful varieties of ultraviolet radiation. What is Earth’s atmosphere made of? The air in Earth’s atmosphere is made up of approximately 78 percent nitrogen and 21 percent oxygen. Air also has small amounts […]