Category: Physics

Can I get rabies from touching a dead bat? Bats with rabies are often disoriented, increasing the likelihood that they end up inside a dwelling by accident. If you find yourself in close proximity to a bat, dead or alive, do not touch, hit or destroy so the bat’s brain can be preserved for rabies […]

What cells are responsible for bone remodeling? Bone remodelling relies on the correct function of two principal cells of the bone tissue: the osteoclasts, multinucleated cells that destroy the bone matrix, and the osteoblasts, having osteogenic functions. How is excess calcium removed from the body? The body controls the amount of calcium in the bloodstream […]

What is the function of torque converter? A torque converter is a type of fluid coupling which transfers rotating power from a prime mover, like an internal combustion engine, to a rotating driven load. In a vehicle with an automatic transmission, the torque converter connects the power source to the load. What happens when the […]

What is the purpose of diode? It allows current to flow easily in one direction, but severely restricts current from flowing in the opposite direction. Diodes are also known as rectifiers because they change alternating current (ac) into pulsating direct current (dc). Diodes are rated according to their type, voltage, and current capacity. Is germanium […]

What is n equal to in physics? The newton (symbol: N) is the SI unit of force. 1 Newton is equal to the amount of force required to accelerate an object at a rate of 1 metre per second, every second. One newton is the force needed to accelerate one kilogram of mass at the […]

Is free proton a stable particle? The free proton (a proton not bound to nucleons or electrons) is a stable particle that has not been observed to break down spontaneously to other particles. Which is more stable proton or neutron? Nuclides containing even numbers of both protons and neutrons are most stable and this means […]

Why do so many students hate math? Some students dislike math because they think it’s dull. They don’t get excited about numbers and formulas the way they get excited about history, science, languages, or other subjects that are easier to personally connect to. They see math as abstract and irrelevant figures that are difficult to […]

How important is the energy flow of an ecosystem? The energy flow in the ecosystem is important to maintain an ecological balance. The producers synthesise food by the process of photosynthesis. The remaining energy is utilised by the plants in their growth and development. This stored energy is transferred to the primary consumers when they […]

How do you calculate drag force in air? For larger objects (such as a baseball) moving at a velocity v in air, the drag force is given by FD=12CρAv2 F D = 1 2 C ρ A v 2 , where C is the drag coefficient (typical values are given in Table 1), A is […]

Is co2 an ionic compound? No, CO2 is not an ionic compound. As per the definition, an ionic compound is a compound that is mostly formed between a metal atom and a non-metal atom. Meanwhile, CO2 is a compound that is formed between two non-metal atoms (carbon and oxygen) thus giving it a covalent nature. […]