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Bess [88]
3 years ago
15

Kecepatan benda sebagai fungsi waktu dinyatakan oleh V=(2t3-3t2)m/s bila t dalam sekon dan posisi awal 4m.maka posisi saat t=2s

adalah
Physics
1 answer:
My name is Ann [436]3 years ago
3 0
Posisi akhir nya adalah 144m
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A 67 kg soccer player uses 5100 kJ of energy during a 2.0 h match. What is the
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The  average power produced by the soccer player is  710 Watts.

Given the data in the question;

  • Mass of the soccer player; m = 67kg
  • Energy used by the soccer player; E = 5100KJ = 5100000J
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Power; P =\ ?

Power is simply the amount of energy converted or transferred per unit time. It is expressed as:

Power = \frac{Energy\ converted }{time}

We substitute our given values into the equation

Power = \frac{5100000J}{7200s}\\\\Power = 708.33J/s \\\\Power = 710J/s \ \ \ \ \ [ 2\ Significant\ Figures]\\\\Power = 710W

Therefore, the  average power produced by the soccer player is  710 Watts.

Learn more: brainly.com/question/20953664

8 0
2 years ago
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Fist one is a cylinder
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during a test crash an airbag inflates to stop a dummies forward motion. the dummies mass is 75 kg. if the net force on the dumm
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Use Force=Mass x Acceleration (newtons second law states force is directly proportional to the acceleration) so you can say that the force is negative and solve for Acceleration.
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3 years ago
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The boiling point of water, or any liquid, varies according to the surrounding atmospheric pressure. A liquid boils, or begins turning to vapor, when its internal vapor pressure equals the atmospheric pressure.
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3 years ago
Two people push on the same door from opposite sides as shown. A man pushes on a door from the left. A woman pushes on the door
AURORKA [14]

Answer:

The door will move when the forces exerted by each individual becomes unbalanced.

Explanation:

The Door will only move when the forces exerted by each of the individual is unbalanced i.e. when the Torque is unbalanced

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example : An object at rest will only move when the applied force is  greater than the frictional forces acting on the object at rest.

8 0
2 years ago
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