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Tema [17]
3 years ago
7

10 Points!

Physics
2 answers:
Pavlova-9 [17]3 years ago
7 0
<h3><u>Answer;</u></h3>

The Average kinetic energy of the molecules increases

<h3><u>Explanation;</u></h3>
  • <em><u>Kinetic energy is the energy that causes motion of molecules.  When a pot of water is subjected to heat the temperature of water rises. As the temperature rises, the kinetic energy of the molecules also increases and the molecules of water vibrates more fast.</u></em>
  • <em><u>Temperature is a measure of the average kinetic energy, therefore as the water in the pot heats up the average kinetic energy rises. Increase in the kinetic energy increases the vibration of water molecules until the water boils. </u></em>
Zinaida [17]3 years ago
4 0
The kinetic energy gets faster as the atoms move faster.  Atoms move faster when heat is applied and more slower when they cool.
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If Chris throws the baseball 60 meters forward in 4.2 sec, what is the velocity of the ball? I need answer immediately
vazorg [7]

Answer:

14.3 m/s

Explanation:

velocity equation

v= d/t

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2 years ago
Much power does a 10 Ohm bulb have in a series circuit with a battery of 12V and nothing else in the the circuit?
Sedaia [141]

Answer:

it will be d) 14.4W

Explanation:

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now, we know

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2 years ago
A runner moves west with an initial velocity of 4 m/s. She accelerates 3 m/s2 for 30 seconds. The runner's final velocity is
Firlakuza [10]

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3 years ago
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liubo4ka [24]

To solve this problem we will apply the concepts related to the conservation of kinetic energy and elastic potential energy. Thus we will have that the kinetic energy is

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PE = \frac{1}{2} kx^2

Here,

m = mass

v = Velocity

x = Displacement

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There is equilibrium, then,

KE = PE

\frac{1}{2} mv^2 = \frac{1}{2} kx^2

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Replacing we have that

\frac{1}{2} (15)v^2 = \frac{1}{2} (230)(0.56)^2

v = 2.19m/s

Therefore the speed of the cart is 2.19m/s

3 0
3 years ago
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