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3 years ago

HELPPP

1 answer:

4 0

Answer: Throughout the year, different parts of Earth receive the Sun's most direct rays. So, when the North Pole tilts toward the Sun, it's summer in the Northern Hemisphere. When the South Pole tilts toward the Sun, it's winter in the Northern Hemisphere.

It's impossible for it to be summer and winter in the same hemisphere because the southern and northern hemispheres have their seasons inverted. For example; when it is summer in the US it is winter in Australia.

Hope this helps :)

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A system had 162.27 kJ of work done on it and its internal energy increased by 57.12 kJ. How much energy did the system lose as

cluponka [151]

Answer:

Explanation:

5 0

3 years ago

Choose all of the following that have at least 1 polyatomic ion in the compound

kondor19780726 [428]

Answer:

calcium hydroxide

lithium phosphate

ammonium sulfide

AgNO3

Explanation:

A polyatomic ion refers to an ion composed of two or more atoms in the ion. In the compounds mentioned, each contains at least one poly atomic ion.

AgNO3 contains NO3^- as its polyatomic ion

calcium hydroxide contains OH^- as its polyatomic ion

lithium phosphate contains PO4^- as its polyatomic ion

ammonium sulfide contains NH4^+ as its polyatomic ion.

7 0

3 years ago

1. In order to make 1 salad it requires 1 head of lettuce, two tomatoes and three carrots. What would be the coefficients for th

pogonyaev

Answer:

3 salad = 3 lettuce + 6 tomatoes + 9 three carrots

Coefficients: 3, 6, 9

Explanation:

1 salad = 1 lettuce + 2 tomatoes + 3 three carrots

<em>Multiply all the coefficients of 1 salad by 3:</em>

3(1 salad) = 3(1 lettuce + 2 tomatoes + 3 three carrots)

<em>Expand the equation:</em>

3 salad = 3 lettuce + 6 tomatoes + 9 three carrots

5 0

3 years ago

If a 25 kg car accelerates at a speed of 100 m/s², what will the force of the car be?

igomit [66]

Answer:

<h2>The answer is 2500 N</h2>

Explanation:

The force acting on an object given it's mass and acceleration is given by

<h3>Force = mass × acceleration</h3>

From the question

mass of car = 25 kg

acceleration = 100 m/s²

The force is

Force = 25 × 100

We have the final answer as

Hope this helps you

5 0

4 years ago

What is the value of x in the equation<br> -8 = x - 15

jasenka [17]

x = 7

-x - 8 = -15

-x = -15 + 8

-x = -7

x = 7

3 0

3 years ago