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3 years ago

What is the Net Force of the applied forces? *

Physics

1 answer:

Oduvanchick [21]3 years ago

3 0

All of anove
Bc it make sense

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Who might be suffering from dissociative fugue?

svetlana [45]

Answer:

More common in adults.

Explanation:

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3 years ago

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A unit of area, often used in measuring land areas, is the "hectare", defined as 104 m2. An open-pit coal mine consumes 72 hecta

lara31 [8.8K]

Answer:

0.018 km³

Explanation:

Area of land

$A=72\times 10^4\ m^2$

D = Depth of land = 25 m

Volume is given by

$V=AD\\\Rightarrow V=72\times 10^4\times 25\\\Rightarrow V=18000000\ m^3$

Converting to cubic kilometers

$1\ m=\dfrac{1}{1000}\ km$

$1\ m^3=\dfrac{1}{1000^3}\ km^3$

$18000000\ m^3=18000000\times \dfrac{1}{1000^3}=0.018\ km^3$

The volume of Earth removed is 0.018 km³

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4 years ago

The zinc plate is coated with mercury

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Amalgamating is the coating of zinc plate with mercury.

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3 years ago

Nuclear reactions, such as fusion and fission, convert

slava [35]

Answer:

Explanation:

In nuclear reaction very small amount of matter is converted into significant amount of energy.

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4 years ago

A block weighing 3.7 kg is suspended from the ceiling of a truck trailer by a hanging bungee cord. The cord has a cross-sectiona

sweet [91]

Answer:

$Y = 2.27 \times 10^{10} N/m^2$

Explanation:

Natural length of the string is given as

$L_o = 43 cm$

length of the string while block is hanging on it

$L = 53 cm$

extension in length is given as

$\Delta L = 10 cm$

now we have strain in the string is given as

$strain = \frac{\Delta L}{L}$

$strain = \frac{{10 cm}{43 cm}$

$strain = 0.23$

similarly we will have cross-sectional area of the string is given as

$A = 40 \times 10^{-6} m^2$

now the stress in the string is given as

$Stress = \frac{T}{A}$

$Stress = \frac{mg}{A}$

$Stress = \frac{3.7 \times 9.81}{40 \times 10^{-6}}$

$stress = 9.07 \times 10^5 N/m^2$

Now Young's Modulus is given as

$Y = \frac{stress}{strain}$

$Y = \frac{9.07 \times 10^5}{40\times 10^{-6}}$

$Y = 2.27 \times 10^{10} N/m^2$

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3 years ago