Category: Physics

What is the energy of a single photon of the microwaves in the oven? The energy of the photons in the microwave range is is 1.24µeV –> 12.4feV . If you know the power of your microwave oven, in watts, which are per second, you can get it to electron volts with this calculator and […]

How many planets are habitable for humans? Based on the findings, the Kepler team estimated there to be “at least 50 billion planets in the Milky Way” of which “at least 500 million” are in the habitable zone. How many planets are there in the universe and their names? There are eight planets in the […]

Does light travel faster in air or glass? Light waves do not need a medium in which to travel but sound waves do. Explain that unlike sound, light waves travel fastest through a vacuum and air, and slower through other materials such as glass or water. How does a black hole attract light if it […]

How can I see my house from satellite? To see a satellite view of your house: Use the search field in the top left to enter your street address. You’ll see your address in the search results. Zoom in closer to get a detailed overhead satellite view of your home. You can drag the man […]

Who gave wave theory of light? Christiaan Huygens What did Newton do with two prisms? Intrigued by the change in shape, Newton cut a variety of holes of different sizes and shapes, but no matter the shape of the original beam, the refracted light turned more oblong. Newton also placed a second prism of the […]

What is the measure of the radius of the circle? Just remember to divide the diameter by two to get the radius. If you were asked to find the radius instead of the diameter, you would simply divide 7 feet by 2 because the radius is one-half the measure of the diameter. The radius of […]

What causes most boating deaths? The majority of boating-related incidents and fatalities are caused by: Not wearing a lifejacket or PFD. Falling overboard. Capsizing, swamping, sinking, or running aground. Being involved in a collision. Operating a pleasure craft while under the influence of alcohol or drugs. Can you drown if you fall asleep in the […]

What happens when the cross product of two vectors is 0? If two vectors have the same direction or have the exact opposite direction from one another (i.e., they are not linearly independent), or if either one has zero length, then their cross product is zero. When two non-zero vectors A and B are perpendicular […]

How many type of cell do we have? 200 different types What 3 things can stem cells do? Stem cells provide new cells for the body as it grows, and replace specialised cells that are damaged or lost. They have two unique properties that enable them to do this: They can divide over and over […]

How do I get my Casio calculator out of standard form? Casio models: Press [SHIFT][MODE][6:Fix]. You are then prompted to enter a number between 0 and 9. The number you enter fixes the number of decimal digits your results will have. Why is my calculator rounding up? there are 10 digits before the decimal point. […]