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3 years ago

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Physics

1 answer:

Alchen [17]3 years ago

8 0

The type of circuit the situation models is: C) a parallel circuit because there is more than one path

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What is instantaneous speed nd velocity

Vladimir79 [104]

Answer:

Instantaneous speed is the exact speed that an object in motion has at a given instant in time.

Instantaneous velocity is the exact velocity that an object in motion has at a given instant in time.

Explanation:

Instantaneous velocity tells how fast an object is moving anywhere along its path.

Instantaneous speed at an instant is equal to the magnitude of the instantaneous velocity at that instant.

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3 years ago

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When two waves are moving toward each other, and their crests line up with each other, it results in a wave with greater amplitu

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constructive interference

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3 years ago

Why material selection is important to design and manufacturing?

Darina [25.2K]

Answer:

You want your product to be as strong and as long lasting as possible. There are also the safety implications to consider. You see, dangerous failures arising from poor material selection are still an all too common occurrence in many industries.

Explanation:

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3 years ago

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How much energy is stored in a 2.80-cm-diameter, 14.0-cm-long solenoid that has 200 turns of wire and carries a current of 0.800

ozzi

Answer:

The energy stored in the solenoid is 7.078 x 10⁻⁵ J

Explanation:

Given;

diameter of the solenoid, d = 2.80 cm

radius of the solenoid, r = d/2 = 1.4 cm

length of the solenoid, L = 14 cm = 0.14 m

number of turns, N = 200 turns

current in the solenoid, I = 0.8 A

The cross sectional area of the solenoid is given as;

$A = \pi r^2\\\\A = \pi (0.014)^2\\\\A = 6.16*10^{-4} \ m^2$

The inductance of the solenoid is given by;

$L = \frac{\mu_0 N^2A}{l} \\\\L = \frac{(4\pi*10^{-7})(200^2)(6.16*10^{-4})}{0.14}\\\\L = 2.212*10^{-4} \ H$

The energy stored in the solenoid is given by;

E = ¹/₂LI²

E = ¹/₂(2.212 x 10⁻⁴)(0.8)²

E = 7.078 x 10⁻⁵ J

Therefore, the energy stored in the solenoid is 7.078 x 10⁻⁵ J

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3 years ago

The comparison of work output to work input is called the mechanical. advantage.. a. true. b. false

miv72 [106K]

B)False........... It's efficiency factor

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3 years ago