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Vedmedyk [2.9K]
3 years ago
9

A roller coaster is moving 10 m/s and a mass of 7 kg. The roller coaster has

Physics
1 answer:
Arada [10]3 years ago
3 0
<h2>Answer:</h2>

<em>Hello, </em>

<h3><u>QUESTION)</u></h3>

A roller coaster is moving 10 m/s and a mass of 7 kg. The roller coaster has kinetic  energy.

<em>✔ We have : Ek = 1/2m x v²; with Ek in J, m in kg and v in m/s</em>

  • Ek = 1/2 x 7 x 10²
  • Ek = 350 J

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what happens to the current in a circuit if the resitance of the components in the circuit is increased​
Anit [1.1K]

Answer:

The current decreases.

Explanation:

Current and resistance are inversely proportional. The equation connecting current, resistance and voltage is V = IR, where V is voltage, I is current and R is resistance.

Rearranging this equation, you get:

I = \frac{V}{R}

and

R = \frac{V}{I}

If the value of voltage in both equations remains constant, and the value of R decreases, the value of I will increase. Conversely, if in the second equation R = \frac{V}{I} , the value of V remains constant the value of I decreases, then the value of R, resistance will increase.

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calculate the amount of work done by a person while taking a bag of mass 100kg to the top of the building hight 10m. The mass of
vredina [299]

Explanation:

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