Engineering High School

However, motors are designed so that the polarity of the electromagnet constantly flips. That is, the north pole becomes the
south pole, and the south pole becomes the north pole, every time the electromagnet turns 180 degrees
Why is it designed this way?
OA.
OB.
Oc.
OD.
to conserve the energy in the battery
so the magnetic field will get stronger
so the electromagnet will continuously turn
to constantly polarize the field magnet

Answers

Answer 1

Answer:

c

Explanation:

if the poles didn't flip then the motor would not be able to spin

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Coving is a curved edge between a floor and a wall.
O True
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True.

Explanation:

where has the process of nuclear fusion been occurring for over four billion years

Answers

Answer:

Inside the Sun.

Explanation:

Inside the Sun, this process begins with protons (which is simply a lone hydrogen nucleus) and through a series of steps, these protons fuse together and are turned into helium. This fusion process occurs inside the core of the Sun, and the transformation results in a release of energy that keeps the sun hot.

) Chain drive ratio is a the ratio between the rotational speeds of the input and output _________ of a roller chain drive system.

Answers

Answer:

Sprockets.

Explanation:

A chain drive is an efficient technique used for the transmission of mechanical power from one point to another. For example, it is used for transmitting power to the wheels of a bicycle, motorcycle, motor vehicle and other machineries such as chain saw etc.

Chain drive ratio is the ratio between the rotational speeds of the input and output sprockets of a roller chain drive system. This ultimately implies that, chain drive ratio is the ratio of the number of teeth on the driving sprocket (T1) divided to the number of teeth on the driven sprocket (T2).

Also, the chain drive ratio can be calculated by dividing the number of teeth on the large sprocket by the number of teeth on the small sprocket.

Additionally, the rotational speed of a sprocket is measured in revolutions per minute (RPM).

One of the issues with the roller chain is that, as the roller chain moves round the sprocket link by link, it affects its speed (surge) due to the change in acceleration and deceleration i.e the rise and fall of its pitch line.

What is the purpose of the graphic language?

Answers

Answer:

enables the representation, analysis and communication of various aspects of an information system. These aspects correspond to varying and incomplete views of information systems and the processes therein.

Help me with this for brainiest:)

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Briefly describe an idea for a new product while thinking mainly about it cost analysis to depict what kinds of direct and indirect cost will be involved in its creation

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can you give more of an explanation to what the product need sti be

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