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Whitepunk [10]
3 years ago
6

A simple wheel and axle is used to lift a bucket of water out of a well. the radii of the wheel and axle are 20cm and 4cm, respe

ctively. determine a) the theoreical effort required to lift a load of 30 N assuming no energy loss b) the efficiency if the actual effort required is 10 N
Physics
2 answers:
Veronika [31]3 years ago
5 0

Answer: i think it is A

Explanation: hope it helped

ddd [48]3 years ago
5 0

Answer:

A

Explanation:

need and explanation or no?

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What is the mathematical relationship between wavelength and velocity? Inverse, horizontal, linear or quadratic? I NEED MAJOR HE
Tju [1.3M]

Answer: Wavelength is the measure of the length of a complete wave cycle. The velocity of a wave is the distance traveled by a point on the wave. In general, for any wave the relation between Velocity and Wavelength is proportionate. It is expressed through the wave velocity formula.

Explanation: For any given wave, the product of wavelength and frequency gives the velocity. It is mathematically given by wave velocity formula written as-

V=f×λ

Where,

V is the velocity of the wave measure using m/s.

f is the frequency of the wave measured using Hz.

λ is the wavelength of the wave measured using m. Velocity and Wavelength Relation

Amplitude, Frequency, wavelength, and velocity are the characteristic of a wave. For a constant frequency, the wavelength is directly proportional to velocity.

Given by:

V∝λ

Example:

For a constant frequency, If the wavelength is doubled. The velocity of the wave will also double.

For a constant frequency, If the wavelength is made four times. The velocity of the wave will also be increased by four times.

Hope you understood the relation between wavelength and velocity of a wave. I truely hope this helps you out tho! Goodluck!

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Answer:

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If a cart of 10 kg mass has a force of 5 newtons exerted on it, what is its acceleration? m/s2
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<em>Thus; a = F/m</em>

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<em>  a = 5 /10</em>

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