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Tasya [4]
3 years ago
8

Describe the energy transformation that occurs in a digital clock.

Physics
2 answers:
Maslowich3 years ago
5 0

Answer:

From electrical energy to kinetic energy.

Explanation:

Most digital clocks are made up of a set of four displays, consisting of seven luminous threads. To light each fillet, an electrical current of 10 milliamps is required. This occurs through electrical energy. Once inside the watch, the electrical energy is transformed into kinetic energy, which is the energy responsible for the movement of all the gears.

wel3 years ago
3 0
<span>From electrical energy to kinetic energy.</span>
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2. Three super strong teenagers pull a heavy crate across the floor. Dion pulls with a force of 18.5 N towards 0°. Shirley pulls
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Answer:

A) The resultant force is 43.4 [N]

B) The movement of the heavy crate is going to the right and in the negative direction on the y-axis

Explanation:

We need to make a sketch of the different forces acting on the heavy crate.

In the attached image we can see the forces and the sum of the vector with their respective angles.

Forces in the X-axis

Fdionx=18.5N\\\\Fshix=16.5*cos(30)=14.29N\\Fjoanx=19.5*cos(60)=9.75N\\\\Forcex= 18.5 + 14.29 + 9.75 = 42.54 N

Forces in the y-axis

FDiony=0[N]\\Fshirley= 16.5*sin(30)=8.25[N]\\Fjoany=19.5*sin(60)=16.88 [N]\\\\Forcesy=0+8.25-16.88= -8.63[N]

Using the Pythagorean theorem

Tforce=\sqrt{(42.54)^{2} +(8.63)^{2} } \\\\Tforce= 43.4N

The movement of the heavy crate is going to the right and in the negative direction on the y-axis, this can be easily seen in the graphical sum of vectors.

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