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3 years ago

What is the frequency of a wave that has a speed of 0.6 m/s and a wavelength of 0.020 meter?

1 answer:

7 0

The formula for wave motion is speed of wave equals frequency times wavelength.v = f lambdarearrangingf = v/lambdaf = 0.6/0.02 = 60/2 = 30Hz, or cycles per second.

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Explanation:

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3 years ago

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An object is accelerating if there is a change in speed and/or ________.

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A change in C. Direction.

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Four forces are exerted on a disk of radius R that is free to spin about its center, as shown above. The magnitudes are proporti

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The given magnitude of forces of F₁ = F₄, F₂ = F₃, F₁ = 2·F₂, give the

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The given parameters are;

F₁ = F₄

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F₁ = 2·F₂

Therefore;

F₄ = 2·F₂

In vector form, we have;

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$\vec{F_2} = \mathbf{ -F_2 \, \hat j}$

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Therefore;

$M_1 =- 0.5 \times 2 \times F_2 \, \hat j \times \dfrac{R}{2} = \mathbf{ -F_2 \, \hat j \times \dfrac{R}{2}}$

Counterclockwise moment due to F₂ = $-F_2 \, \hat j \times \dfrac{R}{2}$

Given that the clockwise moment due to F₄ = The counterclockwise moment due to F₂, we have;

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2 years ago

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the weight of the object, the force of gravity acting on said object, and the mass of the object are needed for Newton's second law of motion.

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3 years ago

S GP A projectile of mass m moves to the right with a speed vi (Fig. P11.51a). The projectile strikes and sticks to the end of a

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What is the kinetic energy of the system after the collision?

$K_f=\frac{3}{2} \frac{m^{2}v_i^{2} }{(M+3m)}$

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Given:

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mass of rod=M

Let, Initial kinetic energy = $K_i$

Final kinetic energy= $K_f$

Moment of inertia =I

What is the moment of inertia?

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What is the angular momentum?

By conservation of angular momentum,

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We know that, the final kinetic energy is given by,

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1 year ago