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IrinaK [193]
3 years ago
11

The mechanical advantage of a wheel and axle is the radius of the wheel divided by the radius of the axle. On wheel and axle A,

the wheel and axle are very close in size. On wheel and axle B, the radius of the wheel is much greater than the radius of the axle.
Which wheel and axle has the greater mechanical advantage?
Physics
2 answers:
Montano1993 [528]3 years ago
7 0

Answer:

Wheel and axle B

Explanation:

It is given that the mechanical advantage of a wheel and axle is the radius of the wheel divided by the radius of the axle.

Mathematically, it can be written as :

MA=\dfrac{r_w}{r_a}.................(1)

On wheel and axle A, the wheel and axle are very close in size while on wheel and axle B, the radius of the wheel is much greater than the radius of the axle.

From equation (1) it is clear that the mechanical advantage is directly proportional to the radius of wheel.

So, the mechanical advantage of wheel and axle B is greater.

sergij07 [2.7K]3 years ago
4 0
Wheal and axle B has greater mechanical advantage
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loris [4]

Questions Diagram is attached below

Answer:

T=2.08s

Explanation:

From the question we are told that:

Speed of Train V=3.0m.s

Angle \theta=12\textdegree

Height of window h_w=0.90m

Width of window w_w=2.0m

The Horizontal distance between B and A from Trigonometric Laws is mathematically given by

 b=\frac{0.9}{tan12}

 b=4.23

Therefore

Distance from A-A

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Therefore

Time Required to travel trough d is mathematically given as

 T=\frac{d_a}{v}

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3 years ago
A hoop, a solid disk, and a solid sphere, all with the same mass and the same radius, are set rolling without slipping up an inc
nadya68 [22]

Answer:

Solution is given in the attachments

3 0
3 years ago
Squids are the fastest marine invertebrates, using a powerful set of muscles to take in and then eject water in a form of jet pr
tatuchka [14]

Answer:

0.25 m/s

Explanation:

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Initially, the squid and the water are at rest, so the total momentum is zero:

p_i = 0

After the squid ejects the water, the total momentum is

p_f = m_s v_s + m_w v_w

where

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v_s is the velocity of the squid

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v_w = 3.50 m/s is the velocity of the water

Due to the conservation of momentum,

p_i = p_f

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0=m_s v_s + m_w v_w

so we can find the final velocity of the squid:

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8 0
3 years ago
Three different people weight a standard mass of 2.00 g on the same balance. Each person obtains a reading of 2.32 g for the mas
Lubov Fominskaja [6]

Answer: precise

Explanation:

Three different people weight a standard mass of 2.00 g on the same balance. Each person obtains a reading of 2.32 g for the mass of the standard. These results imply that the balance that was used is precise.

Precision can be defined as the closeness of measured values to each other, for a measuring equipment it is the closeness of the values of readings obtained at different times to each other. It does not necessarily means the measurements are accurate(closeness to the actual value). Therefore, in the case above where three different people measured the same mass on the same balance, and each of them obtained the same value which is different from the standard value. We can say the balance used is precise because the three readings are the same.

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