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svlad2 [7]
3 years ago
7

An object falls from rest at a rate of 10 m/s / s . How fast was it traveling after 5 seconds of fall?

Physics
1 answer:
Vesna [10]3 years ago
7 0

Answer:

v = u + at \\ v = 10 + 9.81 \times 5 \\ v = 59.05m {s}^{ - 1}

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If a wave has amplitude of 2 meters, a wavelength of 2 meters, and a frequency of 10 Hz, and a period of 1 second, then at what
Serhud [2]

Answer:

20 m/s

Explanation:

The speed of a wave is given by:

v=\lambda f

where

\lambda is the wavelength

f is the frequency

v is the speed

For the wave in this problem,

f = 10 Hz is the frequency

\lambda=2 m is the wavelength

So the speed is

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6 0
3 years ago
A series of pulses, each of amplitude 0.1 m, is sent down a string that is attached to a post at one end. The pulses are reflect
AleksAgata [21]

Answer:

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Explanation:

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With this information we analyze a point on the string where the incident pulse is and each reflected with an amplitude A = 0.1 m, the resulting is

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8 0
2 years ago
A ball is spun around in circular motion such that it completes 50 rotations in 25 s.
Leokris [45]

Answer:

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Explanation:

Given that,

a ball is spun around in circular motion such that it completes 50 rotations in 25 s.

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T=\dfrac{25}{50}\\\\T=0.5\ s

(2). Let f be the frequency of its rotation. It can be defined as the number of rotations per unit time. So,

f=\dfrac{50}{25}\\\\f=2\ Hz

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3 0
3 years ago
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3 years ago
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Angelina_Jolie [31]

Answer:

Explanation:I don't say you have to mark my ans as brainliest but if you think it has really helped you plz don't forget to thank me...

4 0
3 years ago
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