Category: Physics

How do you get air resistance? Air resistance can be calculated by taking air density times the drag coefficient times area all over two, and then multiply by velocity squared. What is air resistance and water resistance? Air resistance is a type of friction between air and another material. For example, when an aeroplane flies […]

Which shape of the moon will you never see during daytime? Because the Sun is also up, and because the Moon phases that are most often visible in daylight show us only a little bit of the Moon’s bright side (like the crescent Moon phases), the Moon is harder to see during the day. Why […]

Why are leaf blowers bad? It comes down to the inefficient engines they use. The inefficient gas engines typically used on leaf blowers generate large amounts of air pollution and particulate matter. The noise they generate can lead to serious hearing problems, including permanent hearing loss, according to the CDC. Are leaf blowers 2 cycle? […]

What keeps earth from falling into the sun? Answer 1: The Earth is always being pulled towards the Sun by gravity. The Earth is not moving fast enough to “escape” the Sun’s gravity and leave the solar system, but it is going too fast to be pulled into the Sun. Therefore, it keeps going around […]

How can I hide my power pole in my yard? How to Hide an Electric Pole in a Backyard Use a twining vine such as clematis to hide the pole. Use a wooden electrical pole as a support for evergreen or flowering vines, if your utility company and local government allow it. Plant a cluster […]

How does ridge push move tectonic plates? Ridge push happens at spreading centers where plates are moving apart. New parts of a plate rise because they are warm and the plate is thin. As hot magma rises to the surface at spreading ridges and forms new crust, the new crust pushes the rest of a […]

How many electrons are in the outer energy level of aluminum? 13 electrons How many valence electrons does an aluminum ion have al 3? three valence electrons Do cations donate electrons? Ions are charged atoms that form when an atom donates or accepts one or more negatively charged electrons. Cations (ions with a positive charge) […]

Is the speed of satellite constant? If the orbital path of a satellite is circular, then its speed is constant and if the orbital path of a satellite is elliptical one, then its speed in its orbit is not constant. In that case its areal velocity is constant. Which one is constant for a satellite […]

Is a can opener a 2nd class lever? In a second-class lever, such as a bottle opener, the fulcrum is at one end, the effort at the other, and the load in between. In a third-class lever, such as chopsticks, the fulcrum and the load are at either end, with the effort in between. These […]

Is chlorine a reactive metal? Chlorine is a halogen in group 17 and period 3. It is very reactive and is widely used for many purposes, such as as a disinfectant. Due to its high reactivity, it is commonly found in nature bonded to many different elements….Properties. Atomic Number 17 Standard Electron Potential Cl2+2e−→2Cl− 1.358V […]