Category: Physics

Do I need to discharge a capacitor? You must discharge the capacitors before working on power supply circuits so you won’t get shocked. There are three different ways to discharge large filter capacitors in a power supply: with a screwdriver, the leads of a socketed 100 watt light bulb, and the leads of a high-wattage […]

Which is the thinnest and outermost layer of the atmosphere? The Earth can be divided into four main layers: the solid crust on the outside, the mantle, the outer core and the inner core. Out of them, the crust is the thinnest layer of the Earth, amounting for less than 1% of our planet’s volume. […]

What is the center of a hurricane called? At the centre of the hurricane is an area of sinking air, called the eye of the storm or inner core. Weather in the eye is normally calm and cloud-free. The eye is circular and can range from 2 to 230miles in diameter. What’s the worst part […]

What is the largest cranial nerve? trigeminal nerve What is the smallest cranial nerve? trochlear nerve What cranial nerve makes you cry? The great (superficial) petrosal nerve from cranial nerve VII provides autonomic innervation to the lacrimal gland. It is responsible for the production of much of the aqueous portion of the tear film. What […]

What are the three major forms of government? The type of government a nation has can be classified as one of three main types: Democracy. Monarchy. Dictatorship. What are the 5 forms of government? Power Defined This lesson will discuss and differentiate between the five main forms of power, or government, utilized in past and […]

How long will it take for 30 g of 222Rn to decay to 7.5 g? 14 Cards in this Set Compared to the mass and the penetrating power of an alpha particle, a beta particle has Less mass and greater penetrating power How long will it take for 30g of 222Rn to decay to 7.5g? […]

What muscles make you run faster? When you’re training to get faster, you have to do more than just run. You need strong legs to power your stride. The quadriceps muscles on the front of your legs and hamstrings, glutes and calves on the back make up most of the muscles in your lower body. […]

What is absolute pressure Example? Absolute pressure is measured relative to absolute zero on the pressure scale, which is a perfect vacuum. (Absolute pressure can never be negative.) Example: A car tire gauge measures a tire pressure of 32.0 psi. The local atmospheric pressure is 14.2 psi. What is absolute pressure used for? An absolute […]

Is it safe to sleep in a room with WiFi router? Is it safe to keep a WiFi router in your bedroom? No, in general, it is not safe to keep a router in your bedroom. You will be exposed to an excessive amount of EMF and RF radiation from the router at close proximity. […]

What do all metals have in common? All metals have a shiny appearance (at least when freshly polished); are good conductors of heat and electricity; form alloys with other metals; and have at least one basic oxide. What property do most metals share? In addition to conducting electricity, many metals have several other shared properties, […]