Category: Physics

What is a simple definition of a cell? What is a cell? A cell is a mass of cytoplasm that is bound externally by a cell membrane. Usually microscopic in size, cells are the smallest structural units of living matter and compose all living things. Most cells have one or more nuclei and other organelles […]

How fast is the ball going after 3 seconds? -30 m/s. What is a 1 in 100 fall? A 1:100 slope means that for every 100 metres along the ground, the slope height increases by 1 metre. A 1:0.5 slope means that for every 1 metre along the ground, the slope height increases by 0.5 […]

How many degrees is out of phase? 180 degrees How can I tell if speakers are out of phase? When a speaker produces sound, it is vibrating back and forth. When you phase a speaker, the idea is to have both speakers moving in the same direction at the same time. If your speakers have […]

Why 3rd harmonic is dangerous? The third harmonic causes a sharp increase in the current in the neutral conductor. Harmonics cause malfunctioning of electronic parts, transformer heating, and malfunctioning of power factor correction capacitors. How many types of harmonics are there? two types What are the main causes of harmonics? Harmonics are the result of […]

How many square feet is 1 kg? 1 kg/sq ft ≈ 10.763 910 416 7097 kg/m2. How do you calculate m3 to tonnes? One cubic meter of concrete converted to tonne (Metric) equals to 2.41 t. How many Metric tonnes of concrete are in 1 cubic meter? The answer is: The change of 1 m3 […]

What is the equation of glucose? The photosynthetic process plants utilize to synthesize glucose is described by the equation: 6CO2+6H2O+energy→C6H12O6+6O2 6 CO 2 + 6 H 2 O + energy → C 6 H 12 O 6 + 6 O 2 . Does aerobic require oxygen? Cellular respiration can occur both aerobically (using oxygen), or […]

Which is the toughest job in the world? Let’s take a look at the top 30 hardest jobs in the world. Military. All military roles have their difficulties, but challenging roles such as a marine and mercenary are among the hardest in the world. Healthcare worker. Oil rig worker. Alaskan crab fisherman. Cell tower climber. […]

Which mirror can be used to burn a paper? Answer: Concave mirror focuses the parallel sun rays at focal point of the mirror. So with a small concave mirror we can heat up and burn a paper….. Would you be able to burn a paper using concave mirror? When a concave mirror is exposed to […]

What is the shape of Inselberg? An inselberg or monadnock (/məˈnædnɒk/) is an isolated rock hill, knob, ridge, or small mountain that rises abruptly from a gently sloping or virtually level surrounding plain. If the inselberg is dome-shaped and formed from granite or gneiss, it can also be called a bornhardt, though not all bornhardts […]

What is the earliest type of conservation a child can solve? However most children are not able to perform the conservation of number task correctly from ages 4–5, and most children develop the ability from ages 6–8. Conservation of mass and length occurs around age 7, conservation of weight around age 9, and conservation of […]