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4 years ago

Racing bikes are built to be very light. Why? Would you want a bike with a high or low structural efficiency?

Physics

2 answers:

Mama L [17]4 years ago

6 0

Answer:

They are built very light because it gives them more agility and they go faster

Explanation:

natta225 [31]4 years ago

4 0

Answer a lighter bike may save you a few seconds per climb. But if you really want to get faster, there are better ways to spend your energy and money, like shedding bodyweight, upgrading your wheels, and making your bike more aerodynamic. Chart comparing the efficiency of bicycles with car, diesel, and steam engines, gas ... is another great advantage of bikes, although a little hard to quantify. ... Cycling can sometimes feel like hard work, especially if you're going uphill. ... Photo: The bicycle's inverted A-frame is an incredibly strong structure ...

Explanation: hopefully it's right :T

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According to Jean Piaget, unrealistic idealism often occurs in adolescence as a result of __________.

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Answer:

Correct answer: 810 mA

Explanation:

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3 years ago

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3 years ago

A person stands between two speakers driven by the same source. Each speaker produces a tone with a frequency of 200 Hz on a day

MissTica

Answer:

The type of interference the person perceives is a Constructive Interference

Explanation:

Before we solve the problem we need to clarify some concepts:

There are two types of Interference, the Constructive and the Destructive interference

The Constructive Interference happens if the difference between the waves movement is equal to an even semi-wavelength number

The Destructive Interference is the opposite than the Constructive Interference, it happens if the difference between the waves movement is equal to an odd semi-wavelength number

Taking the above into account let´s proceed to solve the problem.

First, we will need to find how much the wavelength is (we will call it l), we know the frequency f=200Hz, we also know the speed of sound is v=330m/s. We will use the next equation:

$l=v/f$ then we get that $l=1.65m$

In order to find the semi-wavelength we must divide by 2 the previous result, in this case the semi-wavelength will be:

$l/2=0.825m$

Now, we find the difference between the waves movement, which is the difference between both distances, this difference will be called d and we will find it this way:

$d=4.95m-1.65m$ then d=3.3m

After this, we will do a relation between the distance and the semi-wavelength in order to find what type of interference the person perceives, this way:

$(d)/(l/2)$ then, we have a relation equals to 4. As it´s an even number, we determine the interference is a Constructive Interference

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4 years ago