Are humans the smartest animal? Despite the prevailing belief that humans dominate the animal kingdom when it comes to smarts, we’re actually ranked as the third-smartest species on the planet — at least according to Douglas Adams, author of “Hitchhiker’s Guide to the Galaxy.” But joking aside, there is something to be said for Douglas’ […]
Why was Arctic sea ice so low in 2012?
Why was Arctic sea ice so low in 2012? It’s clear that Arctic sea ice is declining over time, although there are ups and downs each year. And scientists say the melt has been driven by both global warming and other pollutants that humans have put into the atmosphere. What was the sea ice minimum […]
What is a watershed explain?
What is a watershed explain? A watershed is an area of land that drains all the streams and rainfall to a common outlet such as the outflow of a reservoir, mouth of a bay, or any point along a stream channel. Why do we need watersheds? Watersheds are important because the surface water features and […]
How long does a passive RFID tag last?
When a horse pulls a wagon the force that causes the horse to move forward is the force?
Is flow rate a vector?
Is flow rate a vector? 1 Velocity, speed, flow rate, and acceleration. Velocity indicates the distance and the direction of a motion, and is called a vector quantity. To define a vector quantity, both magnitude and direction are needed. What is the unit of flow rate? In S.I. units (International System of Units), volume flow […]
At what distance does a long straight wire carry a current?
At what distance does a long straight wire carry a current? Answer. Magnetic field, We have to find the distance from a long straight wire that is carrying a current of 12 A. Hence, at 0.08 m from a long straight wire carrying a current of 12 A. What basic principle enables all electric generators? […]
What is the lowest temperature that a substance can reach?
What is the lowest temperature that a substance can reach? Absolute zero, technically known as zero kelvins, equals −273.15 degrees Celsius, or -459.67 Fahrenheit, and marks the spot on the thermometer where a system reaches its lowest possible energy, or thermal motion. There’s a catch, though: absolute zero is impossible to reach. What is 70 […]
Where are graphs used?
Where are graphs used? Graphs are a common method to visually illustrate relationships in the data. The purpose of a graph is to present data that are too numerous or complicated to be described adequately in the text and in less space. How are bar graphs useful in real life? Bar graphs are an extremely […]
At what temperature will the resistance of a copper wire becomes three times?
At what temperature will the resistance of a copper wire becomes three times? 4500C. Which change will increase the resistance of a copper wire? material, eg copper, has lower resistance than steel. length – longer wires have greater resistance. thickness – smaller diameter wires have greater resistance. temperature – heating a wire increases its resistance. […]