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tensa zangetsu [6.8K]
3 years ago
9

What type of simple machine is an electric fan?

Physics
1 answer:
GrogVix [38]3 years ago
5 0

Answer:

An electric fan is considered to be a mixture of several simple machines. It includes the Wheel and Axle type, wedges, and the Inclined plane types. The blades of an electric fan are the inclined planes and the wedges.

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Hooke's law describes an ideal spring. Many real springs are better described by the restoring force (F Sp ) s =−kΔs−q(Δs) 3 (p)
Montano1993 [528]

Answer with Explanation:

We are given that

Restoring force,(FS_p)s=-k\Delta s-q(\Delta s)^3

k=350N/m

q=750 N/m^3

We have to find the work must you do to compress this spring 15 cm.

\Delta s=15 cm=0.15 m

Using 1 m=100 cm

Work done=\int_{0}^{0.15}-Fd(\Delta s)

W=-\int_{0}^{0.15}(-k\Delta s-q(\Delta s)^3))d(\Delta s)

W=k[\frac{(\Delta s)^2}{2}]^{0.15}_{0}+q[\frac{(\Delta s)^4}{4}]^{0.15}_{0}

W=0.01125k+0.000127q=0.01125\times 350+0.000127\times 750

W=4.033 J

Ideal spring work=0.5k(\Delta s)^2=0.5\times 350\times (0.15)^2=3.938 J

Percentage increase in work=\frac{4.033-3.938}{3.928}\times 100=2.4%

6 0
4 years ago
A resistor resists the flow of electricity and usually converts electrical energy to heat energy. True or False?
Sidana [21]
Your answer is: True!
7 0
3 years ago
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A single-slit diffraction pattern is formed on a distant screen. Assuming the angles involved are small, by what factor will the
Law Incorporation [45]

Answer:

y and length is directly relation

Explanation:

Given data

A single-slit diffraction pattern is formed on a distant scree

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to find out

what factor will the width of the central bright spot on the screen change

solution

we know that  for single slit screen formula is

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so we can say mass ƛ /area =  y/L

and y = mass length  ƛ / area       .................1

in equation 1 here we can see y and length is directly relation so we can say from equation 1 that  the width of the central bright spot on the screen change if the distance from the slit to the screen is doubled

8 0
3 years ago
Can someone help explain work and power and how it works
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power= work over time
the more power you put into your work the less time it will take, if you have less power the more time</span>
4 0
3 years ago
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What would increase the resistance of a copper wire?
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R = ρl/A

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From the equation, it can be seen that R would increase if the wire's area is reduced.

If the area of the wire is reduced, means the same thing as:

<span>A. decreasing the wire’s thickness</span>
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4 years ago
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