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jonny [76]
4 years ago
10

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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Please help!<br> What is momentum?
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Answer:

a property  of a moving body that the body has by virtue of its mass  and motion and that is equal to the product of the body's mass and velocity

Explanation:

Formula:

Momentum: Mass x Velocity

Hope it helps!

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3 years ago
How does an executive order differ from a statue?
ICE Princess25 [194]

Answer: Executive Order on Protecting American Monuments, Memorials, and Statues against our country are public monuments, memorials, and statues.

Explanation: learned it last week

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3 years ago
What is the relationship in which the ratio of the manipulated variable and the responding variable is constant?
son4ous [18]
That's a 'direct' or 'proportional' variation.

The variables are related by the equation      Y = K X .

That constant ratio is the number    ' K ' .

5 0
3 years ago
what are the various ways in which lithospheric plates interact with each other as they move around on a dynamic earth??
Ivan
<span>The plates make up Earth's outer shell, called the lithosphere. (This includes the crust and uppermost part of the mantle.) Churning currents in the molten rocks below propel them along like a jumble of conveyor belts in disrepair. Most geologic activity stems from the interplay where the plates meet or divide.</span>
3 0
3 years ago
An 89.0 kg fullback moving east with a speed of 5.6 m/s is tackled by an 85.0 kg opponent running west at 2.84 m/s, and the coll
Korolek [52]

Answer:

a. v_f=1.477m/s

b. ΔK=1558.3J

c. E_k=1034.7 J

Explanation:

a).

Momentum conserved

p_{ix}=p_{fx}

m_1*v_1+m_2*v_2=(m_1+m_2)*v_f

v_f=\frac{m_1*v_1+m_2*v_2}{m_1+m_2}

v_f=\frac{89.0kg*5.6m/s+85.0kg*-2.84m/s}{(89.0+85.0)kg}

v_f=1.477m/s

b).

ΔK=K_i-K_f

\frac{1}{2}*m_1*v_1^2+\frac{1}{2}*m_2*v_2^2=\frac{1}{2}*(m_1+m_2)*v_f^2

\frac{1}{2}*89.0kg*(5.6m/s)^2+\frac{1}{2}*85.0kg*(2.84m/s)^2=\frac{1}{2}*(89.0+85.0)kg*(1.447m/s)^2

ΔK=1558.3J

c).

E_k=\frac{1}{2}*89kg*(5.8m/s)^2-\frac{1}{2}*(85+89)kg*(1.44m/s)^2

E_k=1034.7 J

d).

All of which has been lost as mechanical energy, and is now thermal energy warmer football players, noise a loud crunch for example.

8 0
3 years ago
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