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butalik [34]
3 years ago
6

MCQ : What is greenhouse effect?

Engineering
2 answers:
kap26 [50]3 years ago
8 0

Answer:

B. The glass of the car gives protection from sun to your car just like a greenhouse would do to plants!

Here is a brief explanation for you:

The greenhouse effect is a process that occurs when gases in Earth's atmosphere trap the Sun's heat. This process makes Earth much warmer than it would be without an atmosphere. The greenhouse effect is one of the things that makes Earth a comfortable place to live.

People use greenhouses for their plants to receive sunlight without being burnt.

Hope I helped! God bless you!

grigory [225]3 years ago
3 0

Answer:

c. Weather change

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me that both a triaxial shear test and a direct shear test were performed on a sample of dry sand. When the triaxial test is per
stepan [7]

Answer:

shear strength = 2682.31 Ib/ft^2

Explanation:

major principal stress = 100 Ib / in2

minor principal stress = 20 Ib/in2

Normal stress = 3000 Ib/ft2

<u>Determine the shear strength when direct shear test is performed </u>

To resolve this we will apply the coulomb failure criteria relationship between major and minor principal stress a

for direct shear test

use Mohr Coulomb criteria relation between normal stress and shear stress

Shear strength when normal strength is 3000 Ib/ft  = 2682.31 Ib/ft^2

attached below is the detailed solution

8 0
3 years ago
5x−2y=30 Complete the missing value in the solution to the equation. (8, )
givi [52]

Answer:

Value of y = 5

(8,5)

Explanation:

Given:

5x−2y=30

Value of x = 8

Find:

Value of y

Computation:

⇒ 5x−2y=30

⇒ 5(8)−2y=30

⇒ 40−2y=30

⇒ -2y = -10

y = 5

Value of y = 5

(8,5)

4 0
3 years ago
What similarities do wind and solar energy share?
Viefleur [7K]

Answer:

Both come from the sun

Both are reusable sources

and both don't cause pollution

Explanation:

3 0
2 years ago
an object of mass 2kg is released from a top of inclined plane 30° and height 6m. The coefficient of kinetic friction of the sur
mel-nik [20]

Explanation:

1) Work done = force x distance x cos(θ)

= 0.15 x 6 x cos(30)

= 0.779

2) Ek = ½mv²

v = acceleration due to gravity so 9.81

Ek = ½(2)(9.81)²

Ek = 96.2361

3) v = (√(2em)) / m

= (√(2(96.2361)(2)) / 2

= 9.81 so especially with no time given, I can only assume the acceleration due to gravity but take it with a pinch of salt.

5 0
2 years ago
A balanced three-phase 208 V wye-connected source supplies a balanced three-phase wyeconnected load. If the line current IA is m
tatyana61 [14]

Answer:

6.004 Ω

Explanation:

For  a Y- connected system given that :

Line voltage, $V_L = 208 \ V$

Line current , $I_L=20\ A$

and specified that $V_L \ and \ I_L$ are in phase.

Hence the impedance will be pure resistive.

For Y-system

$V_L = \sqrt3 V_{ph}$

$V_{ph}$ = phase voltage

$V_{ph}$ $=\frac{V_L}{\sqrt3} = \frac{208}{\sqrt3}$

    = 120.08 V

Line current = Phase current

$I_L = I_{ph} = 20 \ A$

Now, $z_{ph} = \frac{V_{ph}}{I_{ph}}=\frac{120.08}{20}$

                          = 6.004 Ω

5 0
4 years ago
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