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Mazyrski [523]
3 years ago
11

Is a measure of waves that passes a point in a given amount of time

Physics
1 answer:
GREYUIT [131]3 years ago
8 0
FREQUENCY is the number of complete waves that pass a given point in a certain amount of time. 

Good luck :)
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A battery powers a circuit for a small noisy fan. The fan's motor gets warm as it turns. What energy transformations are
Pepsi [2]

Answer:

Chemical energy to electrical energy to mechanical and thermal energy

Explanation:

In the rotating fan, the chemical energy stored in the battery is used to generate electrical energy.

The electrolytes within the battery undergoes chemical reactions that produces electric current.

  • The current is being used to drive the motor of the fan to produce a mechanical energy as it rotates.
  • In like manner, heat energy is also produced.
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6. A 145-g baseball moving 30.5 m/s strikes a stationary 5.75-kg brick resting on small rollers so it moves without significant
Sindrei [870]

Answer:

Explanation:

a )

momentum of baseball before collision

mass x velocity

= .145 x 30.5

= 4.4225 kg m /s

momentum of brick after collision

= 5.75 x 1.1

= 6.325 kg m/s

Applying conservation of momentum

4.4225 + 0 = .145 x v + 6.325 , v is velocity of baseball after collision.

v = - 13.12 m / s

b )

kinetic energy of baseball  before collision = 1/2 mv²

= .5 x .145 x 30.5²

= 67.44 J

Total kinetic energy before collision = 67.44 J

c )

kinetic energy of baseball after collision = 1/2 x .145 x 13.12²

= 12.48 J .

 kinetic energy of brick after collision

= .5 x 5.75 x 1.1²

= 3.48 J

Total kinetic energy after collision

= 15.96 J

3 0
3 years ago
A quantity found by multiplying the force by the distance moved
Andrej [43]
The quantity that is calculated from the product of the force and the distance traveled due to the force is called work.  It has SI units of Joules (J) which is equivalent to Newton-meter (N-m). It is the energy that happens when an object is being moved by an external force.
7 0
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If the sun exploded would the solar system collaspe?
Sav [38]

Answer:

Yes, yes it would since we need light

Explanation:

5 0
3 years ago
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