Category: Physics

Is it possible to change the polarity of an electromagnet? Yes, we can change the polarity of an electromagnet by reversing the direction of the current. Can electromagnets repel? Electromagnets Repelling an Electromagnet Magnetech opposite pole electromagnets (magnetic pole on each end) can repel each other. There has to be a little air gap between […]

Do the number of cells increase? In general, we grow to our full adult size via an increase in the number — not the size — of our cells. But some of our cells can change size — and this can be for healthy or not-so-healthy reasons. Why does the number of cells increase? Explanation: […]

What happens to the acceleration at exactly 2 s? Since there is a sudden change in velocity at exactly 2 seconds in a very short amount of time, we say that the acceleration is undefined in this case. What is the highest acceleration of the car? Read our review McLaren P1, BAC Mono – 2.8s. […]

What is the similarities of principle and theory? Theory and principle are two inter-related concepts. The key difference between theory and principle is that theory is a scientifically credible general principle that explains a phenomenon whereas principle is a basic truth, rule, or law. What is the relation between theory and practice? Practice refers to […]

What is the R 2 value in Excel? R squared. This is r2, the Coefficient of Determination. It tells you how many points fall on the regression line. for example, 80% means that 80% of the variation of y-values around the mean are explained by the x-values. In other words, 80% of the values fit […]

How far will a 50 watt FM transmitter reach? If 50 Watt ERP is used, it’s very likely that 20 miles of range will be achieved. This is because 50 Watt ERP is ample power to propagate a strong signal 20 miles. If 1 Million Watts of power is used, it is very likely that […]

What is the most complex organic molecule? i-propyl cyanide What are two examples of complex molecules? The four main groups of carbon molecules of life are the most complex organic compounds: proteins, carbohydrates, lipids, and nucleic acids. All complex organic molecules are polymers. What is the longest chemical formula? The IUPAC name for Titin. This […]

Where is the strongest person in tug of war? Tips to win Tug of War Put the strongest person in the back so that he can use his strength the most and will have the least chance of slipping. Keep your arms and body almost straight as you lean backwards with your upper body while […]

Why is atmospheric pressure greatest at sea level? Most gas molecules in the atmosphere are pulled close to Earth’s surface by gravity, so gas particles are denser near the surface. With greater depth of the atmosphere, more air is pressing down from above. Therefore, air pressure is greatest at sea level and falls with increasing […]

Why smoke has mass and occupy space? Answer Expert Verified because smoke is made of soot, which is mostly fine particles of carbon mixed with air. since soot has mass (is made of matter), smoke has mass and it occupied space. Does heat and light have mass and volume? Matter has mass and occupies volume. […]