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Lapatulllka [165]
2 years ago
9

how can you find the mechanical advantage of the six different simple machines? (simples mechinals are pulleys, inclined plane,

wheel and axle, lever, wedge, and screw)
Physics
1 answer:
abruzzese [7]2 years ago
7 0

Hey there!

Each machine preety much have the same type of concept. Let's take for example, a screw. What is a screw? A screw is simply a long/small little "stick" that is able to 'twurl' it's way inside a hole, and hold it's self tight, and also take it's self right back out.

Now, based on the other 5 machines, we can see that it would be very similar of the screw. There would be a in and out function, left to right function, up and down function, and a rounded function, such as a pulley. Those would be the advantages of these different types of machines.

I hope this helps you!

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Answer:

Explanation:

Check the attachment for solution

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3 years ago
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Quantity A of an ideal gas is at absolute temperature T, and a second quantity B of the same gas is at absolute temperature 2T.
Ira Lisetskai [31]

Answer: Yes both gases would have the same entropy.

Explanation:

The formula for the change in the entropy is as follows,

\Delta S = \frac{Q}{T}

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If the temperature of the system increases then there will be increase in the entropy as the randomness of the system increases.

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3 years ago
A wheel of radius 0.38 m rotates in a clockwise sense about a fixed axle with negligible friction at an initial angular speed of
andrew-mc [135]

Answer:

ωf = 2.19 rad/s

Explanation:

Newton's second law:

F = ma has the equivalent for rotation:

τ = I * α   Formula  (1)

where:

τ : It is the torque applied to the body.  (Nxm)

I :  it is the moment of inertia of the body with respect to the axis of rotation (kg*m²)

α : It is angular acceleration. (rad/s²)

Data

F = 24 N  : Tangential force

m : 14 kg : mass of the wheel

R = 0.38 m : radius of the wheel

Moment  of inertia of  the wheel

The moment of inertia of wheel is defined as follows:

I = m* R²

I = 14 kg*(0.38)²

I = 2.0216 kg*m²

Torque applied to the wheel

The Torque ( τ) applied to the wheel is defined as follows:

τ = F*d

Where:

F : Tangential force applied to the wheel

d : Perpendicular distance of the tangential force to the axis of rotation

τ = (24N)*(0.38 m)

τ = 9.12 N*m

Angular acceleration of the wheel  (α )

We replace data in the formula (1):

τ = I * α

9.12 = (2.0216) * α

α= 9.12 / (2.0216)

α = 4.5 rad/s²  

Kinematics of the wheel

We apply the equations of circular motion uniformly accelerated :  

ωf = ω₀ + α*t Formula (2)

Where:  

α : Angular acceleration (rad/s²)  

ω₀ : Initial angular speed ( rad/s)  

ωf : Final angular speed ( rad

t : time interval (s)

Data  

α = 4.5 rad/s²  

ω₀ =1.6 rad/s

t =  0.13 s    

We replace data in the formula (2):  

ωf = ω₀ + α*t

ωf = 1.6 + (4.5)*(0.13)

ωf = 1.6 + (4.5)*(0.13)

ωf = 2.19 rad/s

6 0
3 years ago
In which system are both energy and matter exchanged with the surroundings?
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Answer:

an open system is the answer

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3 years ago
Help pls i need this right neow
yuradex [85]

i think answer is 196 m according to me

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