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Sergeu [11.5K]
3 years ago
7

A grapefruit has a weight on earth of 4.9 newtons. what is grapefruit's mass?

Chemistry
1 answer:
Julli [10]3 years ago
4 0
The force of gravity is the force with which massively large objects such as the earth attracts another object towards itself. All objects of the earth exert a gravity that is directed towards the center of the earth. Therefore, the force of gravity of the earth is equal to the mass of the object times acceleration due to gravity.   

<span>F = ma </span>
<span>4.9N = m (9.8 m/s^2), note that N (newtons) = kg-m/s^2 </span>
m = 0.5 kg 
<span>The mass of the object is 0.5kg.</span>
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What’s are the different Types of chemical weathering
Ira Lisetskai [31]

Answer:

Types of chemical weathering

1. Hydrolysis

2. Oxidation

3. Carbonation

4. Acid rain

5. Acids produced by lichens

Explanation:

Chemical weathering occurs when rocks undergo chemical reactions to form new minerals.

Hydrolysis : is when water dissolves minerals present in rocks forming new compounds.

Oxidation : is when oxygen reacts with rocks eg. rust formation

Carbonation : it uses an acid known as carbonic acid, it is important in the formation of many caves and sinkholes.

8 0
3 years ago
Do atoms or molecules in solids have no motion
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Answer:

Well yes and no

Explanation:

The molecules move, but in place. They are constantly vibrating, rotating and so forth.

Atoms do not move at all

5 0
3 years ago
This diagram shows evidence used to support the cell theory. Which statement of the cell theory does this diagram support?
Ulleksa [173]

Answer:

Its the second one

4 0
3 years ago
Which of these statements BEST describes a possible environmental
andriy [413]

Answer:

Option B. is correct

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Wind turbines collect the kinetic energy of wind using the turbine blades. The blades turn an electric generator as they are connected to a drive shaft, which in turn produces electricity.

These turbine blades can disrupt flying wildlife including bats and birds.

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6 0
3 years ago
A gas at STP has a volume of 1.5 L. What will the pressure be if it is at 26° C occupying .75 L​
andrey2020 [161]

Answer:

P₂ =  2.19 atm

Explanation:

Given data:

Initial volume = 1.5 L

Initial pressure =1 atm

Initial temperature = 273K

Final temperature = 26°C (26+273 = 299 K)

Final volume = 0.75 L

Final pressure = ?

Formula:  

P₁V₁/T₁ = P₂V₂/T₂  

P₁ = Initial pressure

V₁ = Initial volume

T₁ = Initial temperature

P₂ = Final pressure

V₂ = Final volume

T₂ = Final temperature

Solution:

P₂ = P₁V₁ T₂/ T₁ V₂  

P₂ = 1 atm × 1.5 L × 299 K / 273 K × 0.75 L  

P₂ = 448.5 atm .L. K / 204.75 K.L

P₂ =  2.19 atm

6 0
3 years ago
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