Category: Physics

Why is electricity weak in my house? What causes poor quality power supply? Low voltage due to overloading on the network, loose connections, or too small a conductor wire carrying power to your house may cause dimming of your lights. In extreme cases, a loose connection can cause electric shocks from metal appliances and surfaces […]

How do you calculate arm weight and balance? Calculation Determine the weights and arms of all mass within the aircraft. Multiply weights by arms for all mass to calculate moments. Add the moments of all mass together. Divide the total moment by the total mass of the aircraft to give an overall arm. How weight […]

What is the potential difference VB VA in the circuit? The potential difference VB – VA for the circuit shown in the figure is 24kV . Is the potential difference Va VB positive negative or zero? With increase in distance, potential due to point charge decreases. So, i) VA – VB is positive when charge […]

How do I know if my IP is dynamic or static? Check if using Static IP address or Dynamic IP address Under system preferences, select Network and then “Advanced”, then go to TCP/IP. Under “Configure IPv4” if you see MANUALLY you have a static IP address and if you see USING DHCP you have a […]

Where do earthquake epicenter usually found? The epicenter is the point on the earth’s surface vertically above the hypocenter (or focus), point in the crust where a seismic rupture begins. Why are there no earthquakes on the country? Here is your answer! Explanation: The whole country is in a very active seismic area, and they […]

How do spectrophotometers work? The basic function of a spectrometer is to take in light, break it into its spectral components, digitize the signal as a function of wavelength, and read it out and display it through a computer. In most spectrometers, the divergent light is then collimated by a concave mirror and directed onto […]

Can an electric eel kill a shark? Of course if the electric eel manages to give an electric shock, the bull shark won’t appreciate and will probably try to find an easier – and less electric – prey. But there is no way for an eel to beat, or kill, a bull shark. The eel […]

Is a zebra black or white? Zebras are generally thought to have white coats with black (sometimes brown) stripes. That’s because if you look at most zebras, the stripes end on their belly and toward the inside of the legs, and the rest is all white. Is a zebra a horse? Zebras are classified in […]

What type of hearing loss is caused by high exposure to noise? Too much noise at work can lead to temporary or permanent hearing loss or tinnitus—ringing in the ears. What are 4 ways that noise induced hearing loss can be prevented? Preventing Noise-Induced Hearing Loss Avoid or limit exposure to excessively loud sounds. Turn […]

Do CFCs cause cancer? Skin Cancer and Eye Damage CFCs contribute to the loss of the protective ozone layer, which blocks ultraviolet rays from the sun. This exposes more people to UV radiation, which can cause skin cancer. What is the replacement for R22 refrigerant? R-410A What happens if you mix R134A and R22? If […]