It will be 4s because that is pretty quick for a current which uses more bolts its not even at 1 second of the current so its fast
Answer:
When a fluid flows into a narrower channel, its speed increases. That means its kinetic energy also increases. Where does that change in kinetic energy come from? The increased kinetic energy comes from the net work done on the fluid to push it into the channel and the work done on the fluid by the gravitational force, if the fluid changes vertical position. Recall the work-energy theorem,
There is a pressure difference when the channel narrows. This pressure difference results in a net force on the fluid: recall that pressure times area equals force. The net work done increases the fluid’s kinetic energy. As a result, the pressure will drop in a rapidly-moving fluid, whether or not the fluid is confined to a tube.
There are a number of common examples of pressure dropping in rapidly-moving fluids. Shower curtains have a disagreeable habit of bulging into the shower stall when the shower is on. The high-velocity stream of water and air creates a region of lower pressure inside the shower, and standard atmospheric pressure on the other side. The pressure difference results in a net force inward pushing the curtain in. You may also have noticed that when passing a truck on the highway, your car tends to veer toward it. The reason is the same—the high velocity of the air between the car and the truck creates a region of lower pressure, and the vehicles are pushed together by greater pressure on the outside. This effect was observed as far back as the mid-1800s, when it was found that trains passing in opposite directions tipped precariously toward one another.
Explanation:
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Answer:
Frying an Egg
Explanation:
When chemical bonds are broken or formed, new particles are created. Therefore, frying an egg is a chemical change because it results in the formation of new particles.
Explanation:
Mg-2+C+4>Mg2C.
Here you divide the four by the two and transfer the two toMg. In reactions like this oxidation numbers are exchanged.
Answer:
They were formed in this order:
Big Bang > CMB photons > Hydrogen nuclei > Helium Nuclei > Dust > Milky way galaxy > Our Sun.
Explanation:
CMB photons are leftover radiation from the beginning of the universe, they are remnants of the extreme heat that took place during the universe first and violent expansion.
Then, when the universe was cool enough, only the lightest elements were formed, hydrogen and helium, which still today are the most present elements in the universe. The Hydrogen was placed firsts because its lighter than Helium. The rest of the elements were formed later via nuclear fusion.
Stellar dust was formed over the course of 380.000 years and then, gravity helped galaxies and stars to form. The milky way was formed around 13 billion years ago, and our sun was formed around 4.6 billion years ago.