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ale4655 [162]
3 years ago
13

A calculator is rated at 0.37 W when con-

Physics
1 answer:
insens350 [35]3 years ago
4 0

Answer:

18.6 Ω

Explanation:

Resistance = \frac{Voltage}{Current}

But first we have to find the current.

Current = \frac{Power}{Voltage}

Power = 0.37W

Voltage = 2.60V

∴ Current = \frac{0.37}{2.60}

= 0.14 ( 3 significant figures)

Now we can find the resistance.

Resistance = \frac{2.60}{0.14}

= 18.6 Ω ( 3 significant figures)

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v= 4 m/s

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Momenutm is, by definition, the product of mass and velocity.

p = mv

Let's replace what we know and solve for whatever's left

100 kg\cdot m/s = 25kg \cdot v \rightarrow v= 4 m/s

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The stopwatch will be the most useful in determining the kinetic energy of a 50 g battery- powered car traveling a distance of 10 m.

<h3>What is kinetic energy?</h3>

Kinetic energy is the energy of a body possessed due to motion.

This means that for an object to possess kinetic energy, it must be in motion.

The kinetic energy is measured in Joules, which is a product of the mass of the substance and the time taken to travel a distance.

A stopwatch is an instrument used to measure time as one of the components of kinetic energy.

Therefore, the stopwatch will be the most useful in determining the kinetic energy of a 50 g battery- powered car traveling a distance of 10 m.

Learn more about kinetic energy at: brainly.com/question/12669551

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