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ololo11 [35]
3 years ago
7

A wave x meters long has a speed of y meters per second. The frequency of the wave is

Physics
1 answer:
olasank [31]3 years ago
6 0
The answer is B. y/x hertz.

Frequency of a wave is defined as the ratio between the speed and wavelength of the wave. The unit of frequency is hertz (Hz) which is also equivalent to s^-1 or "per second". Following the units of wavelength (m) and speed (m/s), it can also be inferred that frequency is equal to (m/s)/m or y/x.
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The correct answer to the question is : 4000 N

EXPLANATION:

As per the question, the mass of the roller coaster is given as m = 2000 kg

The acceleration of the roller coaster is given as a = 2m/s2

We are asked to calculate the net force acting on the roller coaster.

From Newton's second laws of motion,we know that net external force acting on a particle is equal to the product of mass with acceleration of the particle.

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F = 2000Kg×2m/s2

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Here, Newton (N) is the unit of force.

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