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3 years ago

Identify the position where the cyclist has maximum kinetic energy.

Physics

2 answers:

Gnom [1K]3 years ago

6 0

Answer:

the correct answer is the third position

finlep [7]3 years ago

3 0

You need the picture. However, since I'm doing PLATO as well, here's the answer:

The third position in which the cyclist is going downhill is the position where the cyclist has the maximum kinetic energy. The other two photos show that the biker has more potential energy.

Thanks, let me know if this helped!

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3 years ago

What is the voltage output (in V) of a transformer used for rechargeable flashlight batteries, if its primary has 475 turns, its

VMariaS [17]

Answer:

Output voltage is 1.92 volts.

Explanation:

Given that,

Number of turns in primary coil, $N_p=475$

Number of turns in secondary coil, $N_s=8$

Input voltage, $V_i=114\ V$

We need to find the voltage output of a transformer used for rechargeable flashlight batteries. For a transformer, the number of turns and the voltage ratio is given by :

$\dfrac{N_p}{N_s}=\dfrac{V_i}{V_o}\\\\\\V_o=114\cdot\dfrac{8}{475}\\\\V_o=1.92\ V$

So, the output voltage is 1.92 volts.

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3 years ago