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dmitriy555 [2]
3 years ago
9

What is the kinetic energy of a 2,000-kilogram ball that is on the ground

Chemistry
1 answer:
Finger [1]3 years ago
6 0
Kinetic energy is associated with the motion of an object.
Since the object is at rest on the ground, its velocity is zero.
Since kinetic energy is directly proportional to the square of velocity, kinetic energy of the ball on the ground is zero.
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Stored energy due to position is know as blank energy
Drupady [299]

Answer:

Potential energy

Explanation:

Potential energy is the energy possed by an object at rest. It is otherwise referred to as the stored energy due position.

6 0
3 years ago
5. 1.00 mol HNO3 is treated with 4.47 g of magnesium. Calculate the number of moles of
ruslelena [56]

Answer:

The balanced equation is:

2 HNO3 + Mg ---> Mg(NO3)2 + H2

From the equation, we can see that we need twice the moles of HNO3 than the moles of Mg

Moles of Mg:

Molar mass of Mg = 24 g/mol

Moles = Given mass / Molar Mass

Moles of Mg = 4.47 / 24 = 0.18 moles (approx)

Hence, 2(moles of Mg) = 0.36 moles of HNO3 will be consumed

Number of moles of HNO3 after the reaction is finished is the number of unreacted moles of HNO3

Unreacted moles of HNO3 = Total Moles - Moles consumed

Unreacted moles of HNO3 = 0.64 moles (approx)

Since we approximated the value of moles of Mg, the value of remaining moles of HNO3 will also be approximate

From the given options, we can see that 0.632 moles is the closest value to our answer

Therefore, 0.632 moles will remain after the reaction

3 0
3 years ago
Dimensional analysis, Plz hell I don’t understand and plz explain
Anastasy [175]

Explanation:

30 lb is 480 ounces

34 mi/second is 54.718 kilometre/ second

455 lb/ gal is 54521.024 grams / litre

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7 0
3 years ago
During the nuclear fission process, the transformation between a parent and daughter isotope involves a a release of neutrons an
denis-greek [22]

Answer:

The energy harnessed in nuclei is released in nuclear reactions. Fission is the splitting of a heavy nucleus into lighter nuclei and fusion is the combining of nuclei to form a bigger and heavier nucleus. The consequence of fission or fusion is the absorption or release of energy.

Introduction

7 0
2 years ago
In the covalent compound C3H8 the Greek prefix used to represent the cation is?
krok68 [10]

Answer:

pro

Explanation:

c3h8 is propane

3 carbons makes it PROpane

the ANE come from all single bonds

4 0
3 years ago
Read 2 more answers
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