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Korvikt [17]
3 years ago
15

We can classify both the shovel and the garden trowel as compound machines. This is because each garden tool contains two simple

machines,
A) a lever and a wedge.
B) a blade and a handle.
C) a lever and a pulley.
D) an inclined plane and a wedge.
Physics
2 answers:
Roman55 [17]3 years ago
6 0

Hello,

I believe they are a lever and a wedge.

I hope this helps!

V125BC [204]3 years ago
3 0

Answer:

A lever and a wedge

Explanation:

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Answer:

True

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Because it is:)

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when the particles of the medium move back and forth along the direction of the wave motion, the wave is a
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2 years ago
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An electroscope is a simple device consisting of a metal ball that is attached by a conductor to two thin leaves of metal foil p
baherus [9]

Answer:

the electroscope separate  by the presence of charge carriers

Explanation:

Metal bodies are characterized by having free (mobile) electrons. In the electroscope the plates are in balance; when the external metal ball is touched, a charge is introduced into the device, when the body that touched the ball is separated, an excess charge remains. This charge, being a metal, is distributed over the entire surface, giving a uniform density and an electric force of repulsion is created between the two charged sheets, which tends to separate the sheets. This force is counteracted by the tension component as the sheets are separated at a given angle, the separation reaches the point where

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In summary, the electroscope separate its leaves by the presence of charge carriers

3 0
3 years ago
When you hold a frozen banana treat in your hands, which statement BEST describes what is taking place? A. Heat is flowing from
Andrej [43]

Answer:

The answer is A

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It is A because your body heat is warmer than the banana and when you hold it the heat is transferring over.

3 0
3 years ago
Calculate a rate of cooling down of air from 80 C to 5C Show calculation. Give an answer in cubic meters per minute and cfm.
antoniya [11.8K]

Explanation:

Given that,

Rate of cooling of air

Initial temperature= 80°C

Final temperature = 5°C

We need to calculate

Using newton's law of cooling

\dfrac{dT}{dt}=c(T-T_{0})

\dfrac{dT}{dt}=c(\dfrac{T_{1}+T_{2}}{2}-T_{0})

Where, dT=T_{1}-T_{2}

Here, T =\dfrac{T_{1}+T_{2}}{2}

T_{0} = 25°C  (surrounding temperature)

dt = 1 minute

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Put the value into the formula

\dfrac{80-5}{1}=c(\dfrac{85}{2}-25)

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c=4.285\ cubic\ meter/minute

Hence, This is the required answer.

3 0
2 years ago
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