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damaskus [11]
3 years ago
5

ONLY 2 DAYS LEFT AND 5 WEEKS SUMMER BREAK FOR ME WHY NOT TODAY BE THE LAST DAY-

Physics
1 answer:
amm18123 years ago
6 0
UGH I END SCHOOL JUNE 25
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A trunk is dragged 3.0 meters across an attic floor by a force of 2.0N how much positive work is done on the trunk
Novay_Z [31]

The formula for work is

F*d

Therefore work=2.0N*3.0=6N*m

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An important aspect of fission reactions is that they produce _______________ which allow for chain reactions.
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An important aspect of fission reactions is that they produce free neutrons,  which causes chain reactions.

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You pull with a force of 295 N on a rope that is attached to a block of mass 22 kg, and the block slides across the floor at a c
Sergeeva-Olga [200]

Answer:

Fnet = 0

Explanation:

  • Since the block slides across the floor at constant speed, this means that it's not accelerated.
  • According Newton's 2nd Law, if the acceleration is zero, the net force on the sliding mass must be zero.
  • This means that there must be a friction force opposing to the horizontal component of the applied force, equal in magnitude to it:

       F_{appx} = F_{app} * cos \theta = 295 N * cos 35 = 242 N  (1)

  • In the vertical direction, the block is not accelerated either, so the sum of the normal force and the vertical component of the applied force, must be equal in magnitude to the force of gravity on the block:

      F_{appy} = F_{app} * cos \theta = 295 N * sin 35 = 169 N  (2)

⇒    169 N + Fn = Fg = 216 N  (3)

  • This means that there must be a normal force equal to the difference between Fappy and Fg, as follows:
  • Fn = 216 N - 169 N = 47  N (4)

6 0
2 years ago
. A book is moved once around the perimeter of a table of dimensions 2.00 m by 3.00 m. If the book ends up at its initial positi
Lynna [10]

Answer:

10

Explanation:

displacement would be 10 because knowledge

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3 years ago
What is the condition for the machine to be perfect?​
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I’m not really sure
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