Will we ever be able to travel faster than light? Albert Einstein’s special theory of relativity famously dictates that no known object can travel faster than the speed of light in vacuum, which is 299,792 km/s. This speed limit makes it unlikely that humans will ever be able to send spacecraft to explore beyond our […]
Is the moon dying?
Is the moon dying? The moon isn’t “dead” after all. Newly discovered ridges on the moon’s surface are leading scientists to think that the moon might have an active tectonic system. These ridges, speckled with boulders, could be evidence that, not too long ago, tectonic activity broke apart the moon’s surface. Is Moon cracked? In […]
How many types of flux does a transformer have?
How many types of flux does a transformer have? There are basically two main types of transformers step-up transformer which converts a low input voltage into high output voltage and step-down transformer which converts high input voltage to low voltage. Transformers are used for regulating AC current, rectification, battery charging, etc. How can flux leakage […]
Is liquid a good conductor of electricity?
Is liquid a good conductor of electricity? Substances which allow easy flow of electric current through them are known as electrical conductors. Metals, graphite and certain liquids are a few examples of good conductors of electricity. What liquids are non conductive? Pretty much any oil or organic liquid is non-conducting. These include: Mineral oil. What […]
Is GDP a good measure of the economy?
Is GDP a good measure of the economy? GDP is an accurate indicator of the size of an economy and the GDP growth rate is probably the single best indicator of economic growth, while GDP per capita has a close correlation with the trend in living standards over time. What are the 4 main limitations […]
What type of relationship exists between the length of wire in the resistance if all other factors remain the same?
What type of relationship exists between the length of wire in the resistance if all other factors remain the same? What type of relationship exists between the length of a wire and the resistance, if all other factors remain the same? Resistance is directly related to length. What type of relationship exists between the length […]
What is the first thing a first responder should do?
What is the first thing a first responder should do? A first responder in an emergency situation will assess vital signs, check history and help stabilize the illness for paramedics. As a first responder, your first step is to assess the situation to ensure the scene is safe. The second step is to assess the […]
What are the 4 methods of heat loss?
What are the 4 methods of heat loss? The body loses heat through: Evaporation of water from your skin if it is wet (sweating). Radiation (similar to heat leaving a woodstove). Conduction (such as heat loss from sleeping on the cold ground). Convection (similar to sitting in front of a fan or having the wind […]
How much energy does a geothermal heat pump use?
How much energy does a geothermal heat pump use? Geothermal heat pumps don’t generate heat — they just transfer it from the ground into your home. For every 1 unit of energy used to power your geothermal system, on average 4 units of heat energy are supplied. How much land do you need for geothermal […]
How does the four subsystem interact with each other?
How does the four subsystem interact with each other? The geosphere has four subsystems called the lithosphere, hydrosphere, cryosphere, and atmosphere. Because these subsystems interact with each other and the biosphere, they work together to influence the climate, trigger geological processes, and affect life all over the Earth. Why are the earth’s spheres important? Earth […]