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3 years ago

8

What property of motion is described by Newton's First Law of Motion?

1 answer:

qwelly [4]3 years ago

6 0

The focus of Lesson 1 is Newton's first law of motion - sometimes referred to as the law of inertia. An object at rest stays at rest and an object in motion stays in motion with the same speed and in the same direction unless acted upon by an unbalanced force.

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The process of shedding feather and new ones back

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Molting

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Which direction are sediments deposited?

shutvik [7]

C. horizontal
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3 years ago

An aircraft is taking a group of skydivers up into the air. Evan is dressed in

meriva

4,410 kJ

Explanation:

Gravitational Potential Enegry (GPE) is calculated as;

GPE = <em>m*g*h</em> where;

m = mass (kg)

g = gravity (m/s²)

h = height (meters)

= 90 * 9.8 * 5000

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3 years ago

12. Complete each of the following word equations for synthesis reactions.

Vlada [557]

Explanation:

12)

a) Sodium + oxygen = ?

When sodium reacts oxygen its forms sodium oxide as a product.

$4Na(s)+O_2(g)\rightarrow 2Na_2O(s)$

b) magnesium + fluorine = ?

When magnesium reacts with fluorine its forms magnesium fluoride as a product.

$Mg(s)+F_2(g)\rightarrow MgF_2(s)$

13)

a) $2HgO(s)\overset{\Delta }\rightarrow 2Hg(l)+O_2(g)$

Decomposition of mercury(II) oxide on heating gives out mercury and oxygen gas.

b) $2H_2O(l)\overset{Electricity}\rightarrow 2H_2(g)+O_2(g)$

The electrolytic decomposition of water gives out hydrogen gas amd oxygen gas.

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3 years ago

What are the most persistent surface winds?

nikdorinn [45]

Easterlies are the most persistent surface winds.

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3 years ago

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