Category: Physics

What is the force of static friction equal to? Answer: The force that was applied was exactly the right amount to overcome static friction, so it is equal to Fsmax. On a flat surface, the normal force on an object is η = mg. The coefficient of static friction can be found by rearranging the […]

What is the difference between a screw and a wedge? A wedge is much bigger than any normal screw. Wedge has a plain surface but screw has a surface with ridges and grooves. • Wedge is typically used for cutting and slicing purposes but screw is typically used for fixing and attaching purposes. Is screw […]

Why is plasma not a gas? Plasmas are a lot like gases, but the atoms are different, because they are made up of free electrons and ions of an element such as neon (Ne). Plasma is different from a gas, because it is made up of groups of positively and negatively charged particles. In neon […]

Where does electric potential equal zero? The electric potential from a single charge is defined to be zero an infinite distance from the charge, and the electric potential associated with two charges is also defined to be zero when the charges are infinitely far apart. Can an electric potential exist at a point in? 3 […]

What is Plasmolysis give an example? Some real-life examples of Plasmolysis are: Shrinkage of vegetables in hypertonic conditions. Blood cell shrinks when they are placed in the hypertonic conditions. During extreme coastal flooding, ocean water deposits salt onto land. Spraying of weedicides kills weeds in lawns, orchards and agricultural fields. Does Cytolysis occur in animal […]

How much force is in a Newton? It is defined as that force necessary to provide a mass of one kilogram with an acceleration of one metre per second per second. One newton is equal to a force of 100,000 dynes in the centimetre-gram-second (CGS) system, or a force of about 0.2248 pound in the […]

What are the conditions to form ionic bond Class 11? One of the atoms must be a metal and the other must be a non-metal. The metal atom should have very low ionization energy so that it can lose electrons easily to form cations (positively charged ions) i.e. metal atoms must be highly electropositive. What […]

What was the shortest month ever? February Why is it called February? February is named after an ancient Roman festival of purification called Februa. The Roman calendar originally began in March, and the months of January and February were added later, after a calendar reform. Copper-alloy figure of Mars, the Roman god of war. When […]

Can any LED light be used to grow plants? LED lights are more energy efficient and emit much lower levels of heat than other types of lighting. But can you use any led lights to grow plants? Generally, yes. White light contains a great mix for plants, so white LED bulbs will work to grow. […]

What is the freeze/thaw cycle? What is a freeze-thaw cycle? A freeze-thaw cycle is when the temperature fluctuates from above freezing (32F), to below freezing, and then back to above freezing. This is considered one freeze-thaw cycle, and Minneapolis, Minnesota experiences several freeze-thaw cycles each year. What do freeze/thaw cycles result in? Freeze-thaw cycles can […]