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Nimfa-mama [501]
2 years ago
8

if a tent is touched with a finger on inner surface , when it is raining , it allows the rain water to leak through. give a reas

on for this observation
Physics
1 answer:
Nadusha1986 [10]2 years ago
7 0

Explanation:

When water vapor in the air comes into contact with something cool, like the ceiling of a tent, its molecules slow down and get closer together. When that happens, the gaseous water vapor turns back into liquid water droplets. That's condensation!

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How much current will be flowing through a 40.0 m length of cylindrical metal wire with radius 4.0 mm if it is connected to a so
Degger [83]

Answer:

Current, I = 1200 A                                    

Explanation:

It is given that,

Length of the cylinder, l = 40 m

Radius of the metal wire, r = 4 mm = 0.004 m

Voltage source, V = 16 V

Resistivity of metal, \rho=1.68\times 10^{-8}\ \Omega-m    

We know that the resistivity of any metal is given by the formula as :

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

R=1.68\times 10^{-8}\times \dfrac{40}{\pi (0.004)^2}

R = 0.01336 ohms

Using ohm's law :

R=\dfrac{V}{I}

I=\dfrac{V}{R}

I=\dfrac{16}{0.01336}

I = 1197.60 A

or

I = 1200 A

So, the current flowing in the cylindrical wire is 1200 A. Hence, this is the required solution.

6 0
4 years ago
A skier approaches the base of an icy hill with a speed of 12.5 m/s. The hill slopes upward at 24° above the horizontal. Ignorin
jonny [76]

when object is placed on inclined plane then we will have net force along the inclined plane which is due to the component of weight along the incline

so we can say that

F_x = W sin\theta

F_x = mgsin24

now in order to find the acceleration we can use Newton's II law

F_{net} = ma

mgsin24 = ma

a = g sin24

a = 4 m/s^2

and the direction is along the inclined plane downwards as weight always pull downwards

So correct answer will be

<em>B)4.0m/s2, directed down the slope</em>

7 0
3 years ago
Answer all of them an you will get the brain list
Vlad [161]

Answer:

4. Force = 178.6 Newton.  

5. Acceleration = 2.28 m/s².

6. Force = 178.6 Newton.

Explanation:

4. Given the following data;

Acceleration = 3.8 m/s²

Mass = 47kg

Force = mass * acceleration

Force = 47 * 3.8

<em>Force = 178.6 Newton. </em>

5. Given the following data;

Force = 785N

Mass = 345kg

Acceleration = force/mass

Acceleration = 785/345

<em>Acceleration = 2.28 m/s²</em>

6. Given the following data;

Acceleration = 6m/s²

Force = 32N

Mass =force/acceleration

Mass = 32/6

<em>Mass = 5.33 kilograms </em>

5 0
3 years ago
In the z-scheme ____ is the initial electron donor and ____ is the final electron acceptor.
Alenkinab [10]

In the z-scheme, water is the initial electron donor and NADP+ is the final electron acceptor.

<u>Explanation: </u>

It is a process of photosynthesis. It occurs in photosynthetic chemical reaction. The z scheme is basically a term for representing the oxidation and reduction reaction occurring in plants during photosynthesis.

The water present in the chlorophyll pigment donates electrons and become the initial electron donor. Those electrons get transferred to NADP+ and forms NADPH. Thus, water acts as electron donor initially and so the final electron is NADP+.

6 0
4 years ago
Initial State: An 8-month old child is at rest at the bottom of a staircase.
lord [1]

Answer:

9 years old and he/she crawl like at 2 years old

6 0
3 years ago
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