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3 years ago

Which of these results from destructive interference?

1 answer:

8 0

Based on the options given, the answer is two waves subtract from each other. Destructive interference happens when two waves meet each other however with different frequencies cancel each other out.

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Find the y-component of this<br> vector:

NARA [144]

Answer:

Dy = 49.01 [m]

Explanation:

The vertical component of the vector can be determined with the sine of the angle.

Dy = 92.5*sin(32)

Dy = 49.01 [m]

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3 years ago

A research study that proposed to describe the behaviors of high school teachers would be

german

Answer:

That's a question?

Explanation:

Dnndnxnskwmem fmwo

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3 years ago

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The motion of an object undergoing constant acceleration can be modeled by the kinematic equations. One such equation is xf=xi+v

Mademuasel [1]

Answer:

a = -04978 m / s²

Explanation:

For this exercise we can use the kinematics equations, as the initial speed, distance and time indicate, we can use

x = x₀ + v₀ t + 1 /2 a t²

½ a t² = x-x₀ - v₀ t

a = (x-x₀ - v₀ t) 2 / t²

let's reduce the magnitudes to the SI system

x₀ = 1000 mm = 1 m

x = 5000mm = 5m

let's calculate

a = (5 - 1 - 15 60) 2/60²

a = -04978 m / s²

negative sign indicates that braking is related

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3 years ago

___ + 3H2O + light —> C3H6O3 + 3O2. What amount and substance balance this reaction?

Alik [6]

Answer:3H2O + light-c3h603+302

Explanation:

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3 years ago

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A coil 4.20 cm radius, containing 500 turns, is placed in a uniform magnetic field that varies with time according to B=( 1.20×1

erma4kov [3.2K]

Explanation:

Given that,

Radius of the coil, r = 4.2 cm

Number of turns in the coil, N = 500

The magnetic field as a function of time is given by :

$B=1.2\times 10^{-2}t+2.6\times 10^{-5}t^4$

Resistance of the coil, R = 640 ohms

We need to find the magnitude of induced emf in the coil as a function of time. It is given by :

$\epsilon=\dfrac{-d\phi}{dt}\\\\\epsilon=\dfrac{-d(NBA)}{dt}\\\\\epsilon=N\pi r^2\dfrac{-dB}{dt}\\\\\epsilon=N\pi r^2\times \dfrac{-d(1.2\times 10^{-2}t+2.6\times 10^{-5}t^4)}{dt}\\\\\epsilon=N\pi r^2\times (1.2\times 10^{-2}+10.4\times 10^{-5}t^3)\\\\\epsilon=500\pi \times (4.2\times 10^{-2})^2\times (1.2\times 10^{-2}+10.4\times 10^{-5}t^3)\\\\\epsilon=2.77(1.2\times 10^{-2}+10.4\times 10^{-5}t^3)\ V$

Hence, this is the required solution.

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3 years ago

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