Category: Physics

Why does the jet stream move from west to east? The jet stream is a narrow band of fast, flowing air currents located near the altitude of the tropopause that flow from west to east. The jet stream flows around the entire earth. They usually have a meandering, snake-like shape. These winds shift west to […]

What is work done on a machine called? The work you do on a machine is called the work input. 3. The force you apply to the machine to do the work is the input force. 4. The work done by the machine on another object is called the work output. How do you calculate […]

How long can I drive with a bad U joint? A car with a bad U-joint will break down in a few hundred miles at the maximum. But if you have a bad U-joint and you are having a transmission fluid leakage, you should not drive your car since the U-joint may break down anytime […]

Why do average stars have longer life span than massive star a they have less fuel to burn c they burn their fuel at faster rate B they have more fuel to burn d they burn their? Massive stars live shorter lives than the common small stars because even though they have a larger amount […]

What are 2 synonyms for cardiovascular endurance? WORDS RELATED TO CARDIOVASCULAR FITNESS aerobic fitness. agility. anaerobic fitness. cardiovascular fitness. condition. coordination. endurance. fitness. What type of training improves your cardiovascular endurance? Aerobic training How long should continuous training last? Continuous training develops cardiovascular fitness A minimum of 20 minutes sub-maximal work (steady rate, lower intensity). […]

What fraction of an iceberg of density 910 kg/m 3 will be above the surface of sea water of density 1170 kg/m 3? Solution. ⇒ 2 9 th part of iceberg is above the sea water. What is the fraction of volume of ice seen outside when immersed in water? 10% What is the height […]

How much minutes does it take to pass 1 longitude? Each degree of longitude is sub-divided into 60 minutes, each of which is divided into 60 seconds. Which is the longest longitude? equator How many degrees does the Earth rotate in 1 minute? Every four minutes, the earth has turned one degree. In one minute […]

Which is older fault or intrusion? An intrusion is always younger than the rock layers around and beneath it. A fault is always younger than the rock it cuts through. The surface where new rock layers meet a much older rock surface beneath them is called an unconformity. An unconformity is a gap in the […]

What will happen if there is no convection current in the asthenosphere? If for some reason convection stopped, air would not circulate, and weather would stop. Air wouldn’t flow over the waters, suck up moisture and then rain it out on land. Without this rain, all plants and crops would die. How does the process […]

What is the difference in elevation between two side by side contour lines called? A contour interval is the difference in elevation between two contour lines that are side by side. Remember that a contour interval is not the distance between the two lines – to get the distance you need to use the map […]