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3 years ago

an eco friendly hotel is under construction. Which strategies will help hotel management reach its goal of being eco friendly

Physics

1 answer:

uysha [10]3 years ago

3 0

Answer:

To reach the goal to be Eco friendly, the designer must not harm the ecosystem of surrounding in any ways.

Explanation:

Friendly design means that the hotel must not harm the surrounding ecosystem in any way.
The hotels' energy consumption shall be fulfilled by the use of renewable resources like solar, wind energy, etc.
Proper disposal of wastage is the most important term.
No, chemicals are used inside the premises of the hotel for any purpose of cleaning, washing, etc.
The designer must place a garden with grass, trees, and flowers for the fresh air of the hotel.

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Why does the frequency of a wave increase as the wavelength decreases

olchik [2.2K]

Explanation:

We know that the number of complete waves formed in 1 sec time is frequency and the distance between two consecutive crests or troughs is wavelength. And we have the formula that

Velocity = wavelength * frequency

or, frequency = velocity / wavelength

Here we can see frequency is directly proportional to velocity and indirectly proportional to wavelength.

So as the wavelength increases frequency decreases and as the wavelength decreases frequency increases.

Hope you understood

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3 years ago

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Use the drop-down menus to complete the statement.

VashaNatasha [74]

Answer: A is your answer i am sorry if i am wrong

Explanation:

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3 years ago

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What current flows through a 2.54cm diameter rod of pure silicon that is 20cm long when 1000V is applied?

vfiekz [6]

Answer: $0.0039\ A$

Explanation:

Given

Diameter of the rod $d=2.54\ cm$

length of rod is $l=20\ cm$

Resistivity of silicon is $\rho=6.4\times 10^2\ \Omega-m$

cross-section of the rod $A$

$\Rightarrow A=\dfrac{\pi d^2}{4}\\\\\Rightarrow A=\dfrac{3.142\times 2.54^2\times 10^{-4}}{4}\\\\\Rightarrow A=5.067\times 10^{-4}\ m^2$

Resistance of rod is R

$\Rightarrow R=\dfrac{\rho l}{A}$

$\Rightarrow R=\dfrac{640\times 0.20}{5.067\times 10^{-4}}\\\\\Rightarrow R=25.26\times 10^4\ \Omega$

Current is given by

$\Rightarrow I=\dfrac{V}{R}\\\\\Rightarrow I=\dfrac{1000}{25.26\times 10^4}\\\\\Rightarrow I=0.0039\ A$

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2 years ago

A professor drives off with his car (mass 870 kg), but forgot to take his coffee mug (mass 0.47 kg) off the roof. The coefficien

SSSSS [86.1K]

Answer: $6.86 m/s^2$

Explanation:

Given

mas of car=870 kg

coffee mug mass=0.47 kg

coefficient of static friction between mug and roof $\mu _s= 0.7$

Coefficient of kinetic Friction $\mu _k=0.5$

maximum car acceleration is $\mu \times g$

here coefficient of static friction comes in to action because mug is placed over car . If mug is moving relative to car then \mu _k is come into effect

$a_{max}=0.7\times 9.8=6.86 m/s^2$

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3 years ago

Afootball of mass 550g is at rest on the ground the football is kicked with a force of 108 newton the footballers boot is in con

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3 years ago