Category: Physics

Is there any oxidation without reduction? Oxidation cannot occur without reduction occurring at the same time. If one substance loses electrons then another substance has to gain those electrons. Can oxidation and reduction takes place alone? When electrons are lost by one atom, they must be gained by another element. Therefore oxidation and reduction cannot […]

How long will it take to walk 10km? 90 minutes to two hours How do you convert km to time? Divide distance (in km) by the speed (in km/h) to calculate the time (in hours). In our example, time is 138.374 km/ 54 km/h = 2.562 hours. How many Kilometre make an hour? meaning covering […]

Does iron cause a supernova? It then starts to fuse elements that are a bit heavier, leading up iron. Once iron comes into the equation, things get very bad very quickly. Suddenly, it’s no longer able to sustain equilibrium, so its core collapses in on itself and it casts off its gaseous envelope in one […]

What are the three common fault types? There are three kinds of faults: strike-slip, normal and thrust (reverse) faults, said Nicholas van der Elst, a seismologist at Columbia University’s Lamont-Doherty Earth Observatory in Palisades, New York. What is the difference between reverse fault and normal fault? In a reverse fault, the hanging wall displaces upward, […]

What are the 4 types of science? There are four major branches of science; each branch is categorized in different type of subjects that covers different areas of studies such us chemistry, physics, math, astronomy etc. The four major branches of science are, Mathematics and logic, biological science, physical science and social science. What is […]

Do convergent boundaries cause volcanoes? If two tectonic plates collide, they form a convergent plate boundary. Usually, one of the converging plates will move beneath the other, a process known as subduction. The new magma (molten rock) rises and may erupt violently to form volcanoes, often building arcs of islands along the convergent boundary. Where […]

Is it possible to have a zero electric field value between a negative and positive? 7) Is it possible to have a zero electric field value between a negative and positive charge along the line joining the two charges? A) Yes, if the two charges are equal in magnitude. At which point or points is […]

What is the minimum time that a warm up? How long should a warmup be? Try to spend at least 5 to 10 minutes warming up. The more intense your workout is going to be, the longer your warmup should be. Focus first on large muscle groups and then perform warmups that mimic some of […]

Which is the closest to the height of a student desk? If the student desk height is right, the tip of the thumb should be at kids eyes level. For 120-150 cm (47 – 59 inches) tall kids their writing desk height should be between 55-65 cm (or 22 – 26 inches) and the proper […]

What does the reading on a voltmeter mean? A voltmeter measures how much voltage is passing between two points. It does this by measuring the difference between the positive input of voltage and the negative input of voltage. Display, where you’ll see the results of the measurement. If your meter is analog you’ll have to […]