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3 years ago

How is the ideal mechanical advantage of a wheel and axle calculated?

2 answers:

8 0

Mechanical Advantage is the value which tells us the factor by which the machine is able to convert the force applied to it to its output.

Ideal Mechanical Advantage of wheel and axle is calculated by

IMA = Wheel Radius / Axle Radius

By virtue, the higher the computed IMA the lower the force needed to be exerted, this is the purpose for using machine, lower input force but larger output. (The smalled the axle radius compared to the wheel radius is the better setup.)

maria [59]3 years ago

7 0

Divide the radius of the wheel by the radius of the axle

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Two brothers, Frank and Dion, are on roller skates and standing still when they push off from one another. Frank's mass is 103.4

tigry1 [53]

Around -3.5 ( might not be completely right ) Frank has a greater mass to he has a low velocity at first, Dion is around half of his weight so he doesn’t have to use as much force to get more than Frank

3 0

2 years ago

swings a 5.5 kg cup of water in a vertical circle of radius 1.9 m. (a) What minimum speed must the cup have in this demo if the

Tanzania [10]

Answer:

4.32

Explanation:

The centripetal acceleration of any object is given as

A(cr) = v²/r, where

A(c) = the centripetal acceleration

v = the linear acceleration

r = the given radius, 1.9 m

Since we are not given directly the centripetal acceleration, we'd be using the value of acceleration due to gravity, 9.8. This means that

9.8 = v²/1.9

v² = 1.9 * 9.8

v² = 18.62

v = √18.62

v = 4.32 m/s

This means that, the minimum speed the cup must have so as not to get wet or any spill is 4.32 m/s

6 0

2 years ago

How much work output can a 150hp snowmobile do in 15 seconds if it is 18 % efficiency?

Sav [38]

The work output is $3.02\cdot 10^5 J$

Explanation:

The power of the snowmobile is

$P=150 hp$

Keeping in mind that

$1 hp = 746 W$

We can convert it into Watts:

$P=(150)(746)=111,900 W$

The energy used by the snowmobile can be found as follows:

$E=Pt$

where

P = 111,900 W is the power used

t = 15 s is the time interval

Substituting,

$E=(111,900)(15)=1.68\cdot 10^6 J$

However, the snowmobile is 18% efficient: this means that only 18% of this energy is converted into useful work. Therefore, the work output is

$W=0.18E=(0.18)(1.68\cdot 10^6)=3.02\cdot 10^5 J$

Learn more about power and work:

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brainly.com/question/6443626

#LearnwithBrainly

3 0

3 years ago

What is storage of energy

Talja [164]

Hey,

Storage of energy is known as potential energy. If you take a spring for example, and you stretch it then you hold it, it has the energy you put into it but it is potential since it's not moving. Of course once you let go of it its potential energy turns into kinetic energy.

There are other examples as well, such as a battery. I decided to use the spring example because it is simpler.

I hope it helped.

I wrote all that^.

3 0

2 years ago

The volume of sound wave corresponds to which part of the wave? A. Velocity B. Frequency C. Amplitude D. Wavelength

Alborosie

The answer is C i hope its right

5 0

3 years ago