Category: Physics

Does it take energy to freeze water? It takes 100 calories to heat 1 g. water from 0˚, the freezing point of water, to 100˚ C, the boiling point. However, 540 calories of energy are required to convert that 1 g of water at 100˚ C to 1 g of water vapor at 100˚ C. […]

Can you run 2 stroke gas in a 4 stroke? You can run a 4 stroke motor with fuel youve mixed for a 2 stroke. You may have oil smoke from the exhaust or foul plugs over some time, but it wont hurt the engine. You cannot run diesel fuel in a gas engine or […]

Are ecoregions bigger than ecosystems? An ecoregion (ecological region) or ecozone (ecological zone) is an ecologically and geographically defined area that is smaller than a bioregion, which in turn is smaller than a biogeographic realm. What is an example of an ecoregion? Ecoregions are defined by soil type, climate, temperature, precipitation and other characteristics. For […]

Does convex lens converge light rays? Because a convex lens concentrates the light rays that are incident on it, it is called a converging lens. The bending of rays is maximal at the top and bottom of the lens. The distance from the optical center to the focal point is called the focal length of […]

Which has a greater nuclear charge NE or NA? Take note that the nuclear charge of an atom comes from the positively charged protons. Since sodium atom has 11 protons whereas neon has 10, sodium will have a greater nuclear charge. Which is bigger NE or Na+? Since Na+ has a higher effective nuclear charge, […]

How do you know if its BCC or FCC? If the unit cell also contains an identical component in the center of the cube, then it is body-centered cubic (bcc) (part (b) in Figure 12.5). If there are components in the center of each face in addition to those at the corners of the cube, […]

Is boron a metal or metalloid? Boron is a non metallic element and the only non-metal of the group 13 of the periodic table the elements. Boron is electron-deficient, possessing a vacant p-orbital. Why is boron not a metalloid? Boron is neither a metal nor a non-metal; it is kept in the category of metalloids. […]

Why whales are called filter feeders? Whales called as filter feeders because they used to filtered their food through baleen plates. they suction water into their mouths at high velocities while their body remains stationary. The food along with water moves through the filtering pads or baleen plates that covered the entrance of their throat. […]

Can you go to jail for cheating on Act? Yes, if you helped someone else cheat, you certainly could do jail time (probably not much, but still, any jail time is too much in my humble opinion) for criminal fraud, and possibly sued for fraud by the College Board, the schools to which you applied, […]

Why it is easy to pull than push? Friction is the force acting between the object and the surface. So, when there will be less force of friction, it is easier in that case to move the body. Hence, it is easier to pull than to push a body. What is easier push or pull […]