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Schach [20]
2 years ago
13

Which is observed globally: "Earth Day" or "Arbor Day"?

Physics
2 answers:
sattari [20]2 years ago
8 0
Earth day is more globally observed. Arbor day is lowkey rare
neonofarm [45]2 years ago
5 0

Answer:

Earth Day is observed globally

Explanation:

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A car has a mass of 550 kg. What is the weight of the car?
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3 years ago
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A 0.54 kg air hockey puck is initially at rest. What will it's kinetic energy energy be after a net force of 0.56 N acts on it f
Rufina [12.5K]

Answer:

Kf = 470 mJ

Explanation:

  • According the work-energy theorem, the change in the kinetic energy of one object, is equal to the net work done on it.
  • Since the puck is initially at rest, the change is kinetic energy is just the final kinetic energy of the puck.
  • Assuming that the net force is horizontal, and causes a horizontal displacement also, we can find the net work on the puck as follows:

       W_{net} = F_{net} * \Delta X = 0.56 N * 0.84 m = 0.47 J = 470 mJ (1)

  • As we have already said, (1) is equal to the final kinetic energy of the puck:
  • ⇒ Kf = 470 mJ  (2)
8 0
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Which of the following parts of John Dayton’s atomic theory
horrorfan [7]

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Atoms (small elements) ARE REAL!!!

Explanation:

mind blowing...

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What do lenses do?
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