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Leona [35]
3 years ago
11

What is the difference between an open and closed circuit?

Physics
1 answer:
exis [7]3 years ago
7 0
A closed circle means the number is included and an open circle means its not.
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What body part plays a strong role in releasing power​
Eddi Din [679]

Answer:

I think your bones, muscles, and joints your welcome :)

Explanation:

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When the input work on simple machine equals the work the machine is said to be 100% efficient
Semmy [17]

Answer:

This is not a question, but a statement. The concept that the work done is equal to the input work on a simple machine is called ideal machine. An ideal machine has 100% efficiency which means that there is no loss. All the amount of input work is equal to the useful output of the machine.

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Charge is placed on the surface of a 2.7-cm radius isolated conducting sphere. the surface charge density is uniform and has the
soldi70 [24.7K]
First, convert the radius of the sphere from centimeter to meter.
   r = (2.7 cm)(1 m/ 100 cm) 
   r = 0.027 m

Then, calculate for the surface area of the given by the equation,
   A = 4πr²

Substituting the known values,
   A = 4(π)(0.027 m)²
   A = 9.16 x 10⁻³ m²

Then, multiply the calculated area to the charge density given to determine the total charge.
      C = (6.9 x 10⁻⁶ C/m²)(9.16 x 10⁻³ m²)
      C = 6.32 x10⁻⁸ C

<em>Answer: C = 6.32 x 10⁻⁸ C</em>

5 0
3 years ago
Hans observed properties of four different waves and recorded observations about each one in his chart.
Andre45 [30]
D.<span>Wave 3 resulted from constructive interference, and Wave 4 resulted from destructive interference.

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Jerome solves a problem using the law of conservation of momentum. What should Jerome always keep constant for each object after
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Jerome solves a problem using the law of conservation of momentum. What should Jerome always keep constant for each object after the objects collide and bounce apart?

a-velocity

b-mass

c-momentum

d-direction

Answer:

b. Mass

Explanation:

This question has to do with the principle of the law of conservation of momentum which states that the momentum of a system remains constant if no external force is acting on it.

As the question states, two objects collide with each other and eventually bounce apart, so their momentum may not be conserved but the mass of the objects is constant for each non-relativistic motion. Because of this, the mass of each object prior to the collision would be the same as the mass after the collision.

Therefore, the correct answer is B. Mass.

6 0
4 years ago
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