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3 years ago

11

When it is winter, the United States receives the least direct solar energy, as compared with the rest of the year. Why does thi

s happen?

1 answer:

devlian [24]3 years ago

5 0

The Northern Hemisphere is titled away from the sun

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B. Which of the following compounds can

Tamiku [17]

Answer:

The correct answer is:

d. Na2S, NaF

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3 years ago

Read 2 more answers

Substances have more kinetic energy in the _______ state than in the _______ state. A. Gas; solid B. Solid; gas C. Solid; liquid

Elodia [21]

Substances have more kinetic energy in the gas state than in the solid state

6 0

3 years ago

How is kinetic energy related to mass and velocity?

Andrew [12]

The amount of kinetic energy that an object has depends on its mass or how heavy it is and how fast it is moving, or velocity

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3 years ago

What is the area of triangle ABC with vertices A(x¹,y¹), B(x²,y²)and C (x³,y³)??????????<br>

AlexFokin [52]

Answer:

$Area = \frac{1}{2}|x_1(y_2 - y_3)+x_2(y_3 - y_1)+x_3(y_1 - y_2)|$

$Area = 2\ units^2$

Explanation:

Given

$A = (x_1,y_1)$

$B = (x_2,y_2)$

$C = (x_3,y_3)$

Required

Determine the area

The area of a triangle is :

$Area = \frac{1}{2}|A_x(B_y - C_y) + B_x(C_y - A_y) + C_x(A_y - B_y)|$

By substituting values for the x and y coordinates of A, B and C;

We have:

$Area = \frac{1}{2}|x_1(y_2 - y_3)+x_2(y_3 - y_1)+x_3(y_1 - y_2)|$

So:

For instance

$A = (0,3)$

$B= (2,1)$

$C = (2,3)$

The area is:

$Area = \frac{1}{2}|0(1-3) + 2(3-3) + 2(3-1)|$

$Area = \frac{1}{2}| 2*0 + 2*2|$

$Area = \frac{1}{2}| 0 + 4|$

$Area = \frac{1}{2}|4|$

$Area = \frac{1}{2} * 4$

$Area = 2\ units^2$

7 0

2 years ago

How many moles of silver chloride are produced from 15.0 mol of silver nitrate?

Tema [17]

Answer:

15 moles

Explanation:

6 0

3 years ago