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exis [7]
2 years ago
15

The box in the above picture is falling from the top of a building to the ground. Two major forces are acting on the box as it f

alls. Which force is represented by the arrow labeled Q?
A.
the force of magnetism
B.
the force of gravity
C.
the net force of the object
D.
the force of air resistance

Chemistry
2 answers:
MAVERICK [17]2 years ago
8 0

Answer:

I think it's B

Explanation:

apologies if I get this wrong

skad [1K]2 years ago
5 0

Answer:

The correct answer is B. The force of gravity.

Explanation:

Gravity affects all objects falling through the Earth's atmosphere. Gravity pulls down on a falling object.

( I got it on study Island as well )

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How many grams of Mg are needed to produce 224 g of MgO in the complete reaction of Mg
zmey [24]

Answer:

134.4 g of Mg

Explanation:

reaction:

2Mg + O2 ➡️ 2MgO

1) find the mol of MgO

mol = mass / molar mass

mass = 224 g

molar mass = 24+16 = 40

mol = 224 / 40

= 5.6 moles

2 mol = 5.6 moles

2) find the mass of Mg

mass = mol × molar mass

mol = 5.6

molar mass = 24

mass = 5.6 × 24

= 134.4 g

7 0
3 years ago
What is the difference between polar and non-polar
ExtremeBDS [4]

Answer:

Polar molecules occur when there is an electronegativity difference between the bonded atoms. Nonpolar molecules occur when electrons are shared equal between atoms of a diatomic molecule or when polar bonds in a larger molecule cancel each other out.

Explanation:

Polar molecules occur when there is an electronegativity difference between the bonded atoms. Nonpolar molecules occur when electrons are shared equal between atoms of a diatomic molecule or when polar bonds in a larger molecule cancel each other out.

5 0
2 years ago
What does the word "kinetic" indicate about
Natasha2012 [34]
It’s B. The kinetic molecular theory states that matter is made up of constantly moving particles.
4 0
1 year ago
How many grams of ammonia (NH3) can be produced when 25 g of nitrogen gas reacts with 28 grams of hydrogen gas
Elis [28]

Answer:

34 g of NH₃

Explanation:

7 0
3 years ago
Who was the scientist responsible for the theory of evolution by natural selection?
Allushta [10]

Answer:

Charles Darwin

Explanation:

Charles Darwin is more famous than his contemporary Alfred Russel Wallace who also developed the theory of evolution by natural selection. scientist who studies living organisms.J

8 0
3 years ago
Read 2 more answers
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