Answer:
Around the entire length of the wire
Explanation:
Fire extinguishers are typically red. Goes along with the red fire trucks and red being a color of emergency. While there isn't any standard, if we decided to change the colors of the fire extinguisher, people would be very confused and given the context, it could cost people's lives, so I'm thinking red will be the color of fire extinguishers for a while to come.
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Explanation:
A. White Dwarf: It is the end stage of a Sun-like star. At the end the red giant star will throw away the outer layers in the form a shell and in the center a hot and bright core will remain. This core consists of carbon and oxygen but the conditions are not suitable to start the fusion of carbon and oxygen.
B. Protostar: It is the initial stage of a star. Here the fuel is available but still the temperature and pressure are not enough to start the nuclear fusion.
C. Main Sequence Star: A star that is fusing Hydrogen in the core to make Helium and releasing the energy in this process. Sun is currently in its main sequence stage. A star spend 90% of its lifetime in main sequence stage.
D. Red Giant Star: In such stars, the hydrogen has been exhausted and only Helium is left. As the core starts contracting under gravity, the conditions are apt for the fusion of Helium to begin. Helium starts fusing to make carbon while in the outer layer Hydrogen to Helium process goes on. As a result the star expands.
From first law of motion, law of inertia, we know that an object remains in the state of rest or motion unless acted upon by an unbalanced external force. The skateboard riding down a hill when reaches the bottom slows down due to <u>frictional force </u>acting in the opposite direction. Frictional force is a contact force which acts between two surfaces against the direction of motion of one surface over the other. Here, frictional force acts <u>between skateboard and ground</u>. This reduces the speed of the skateboard and it eventually stops.
