What is the potential energy of a rock that weighs 5 kg and sits on top of a 10- meter high hill?.

Answers

Answer 1

Answer:

490 Joule

Explanation:

Solution:

Given,

Mass (m) = 5 kgAcceleration due to gravity= 9.8 m/sHeight (h)= 10 m

Here,

Potential Energy (P.E.)= mgh

=5×9.8×10

= 490 Joule


Related Questions

Tim drives at an average speed of 80km.

Answers

Answer:

and? I dont know Tim.

Explanation:

1) What is The Full form Of WWW ?
2)What Is The full form of 3 Cs ?


2nd question is little confused .
plz Don't Spam .​

Answers

WWW is an abbreviation for World Wide Web ...

Corporation, Customer, Competitors (3C's) Model is a business model that focuses on the three key factors needed for success. This model was conceived by the famous business strategist, Kenichi Ohmae.

Answer:

• Full form of WWW :-

World Wide Web

WWW is an abbreviation for World Wide Web and it is commonly called the WEB. It is a system that is used to store documents and is accessed using URL(Uniform Resource Locator) which are accessible through Internet .

• The full form of 3 Cs :-

Corporation, Customer, Competitors

(3C's) Model is a business model that focuses on the three key factors needed for success. This model was conceived by the famous business strategist, Kenichi Ohmae.

Explanation:

Hope this helps you !!

Rami is graduating high school in the spring. He is interested in becoming a electrician. What are his options for learning this trade? select all that apply.

Answers

To be a licensed electrician requires deep knowledge of the field. Rami's  options for learning this trade are;

He should applied degree at a two year college or He can study for a bachelor's degree at a four year collegeApprenticeship and trade school

A licensed electrician job is not easy to obtain. It requires studying, years of being an apprentice or attending school, and years of  work experience.

To be a licensed electrician, these steps should be followed:

Earn a high school diploma or Its equivalent. Try and attend a trade or vocational-technical school. Sign up as an electrician apprentice.   Get licensed or certified.

See full question blow

Rami is graduating high school in the spring. He is interested in becoming a electrician. What are his option  learning this trade? Select all that apply.

applied degree at a two year college bachelor's degree at a four year college vocational training in the military apprenticeship and trade school going directly into the workplace

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Answer: 1) applied degree at a two year college

3) Vocational training in the military

4) apprenticeship and trade school

Explanation: did on edge :)

What is "four times the sum of x and y" in a mathematical phrase?.

Answers

Answer:

4(x + y)

Explanation:

Have a nice day

4 t-shirts and a hat costs £31. 00 2 t-shirts and a hat costs £17. 0. How much does a t-shirt cost? how much does a hat cost?.

Answers

Answer:

T-Shirt Cost = £7

Hat Cost = £3

Explanation:

Important Information:

4 t-shirts and a hat costs £31.00

2 t-shirts and a hat costs £17.00.

Here we assume t-shirt be x and hat be y.

Explanation/Solution:

Based on the above information, the calculation is as follows:

4x + y = 31

2x + y = 17

Now subtract equation 2 from 1

2x = 14

x = 7

So y is

4(7) + y = 31

28 + y = 31

y = 3

Therefore we can conclude that The t-shirt cost £7 and Hat cost £3.

Which group of people was one o fthe first to spread hte idea of worshipping only one god?.

Answers

Answer:

The first people to express the idea that there is only one God were the Jews, and then later on Christians (because Jesus Christ brought Christianity.)

Explanation:

I hope this helps! :D

Which comparison between events in the passage would best support a claim that a significant theme of the passage is fulfillment?.

Answers

The comparison that illustrates the theme is Theodora's isolation from her family and her reading of the publisher's response regarding her manuscript.

The theme of a story simply means the central idea that's conveyed in a story. It illustrates what the author wants the readers to know in the story.

The comparison between events in the passage support a claim that a significant theme of the passage is fulfillment. This was illustrated as Theodora's isolation from her family and her reading of the publisher's response regarding her manuscript.

Learn more about themes on:

https://brainly.com/question/15568278

Marianna is working on improving her communication skills. To be a good listener she should.

Answers

-not interrupt
-put devices away
-repeat somethings she heard so others see she’s paying attention

What amount of heat, in kj, would be involved in condensing 15. 8 g of ch₃oh? (∆hvap = 38. 0 kj/mol).

Answers

Considering the definition of enthalpy of vaporization, the amount of heat that would be involved in condensing 15.8 g of CH₃OH is 18.8 kJ.

When a material changes phase from solid to liquid, or from liquid to gas, a certain amount of energy is involved in this phase change.

In case of phase change from liquid to gas, this amount of energy is known as enthalpy of vaporization (symbolized as ∆Hvap).

So, the enthalpy of vaporization is the amount of energy required to change a unit of mass (for example, moles or kg) of a substance from phase liquid to phase gas at constant temperature and pressure.

In this case, you know that enthalpy of vaporization is ∆Hvap = 38.0 kJ/mol.

On the other side, you want to vaporize 15.8 g of CH₃OH.  Then, being the molar mass of the compound 32 [tex]\frac{g}{mole}[/tex] (that is, the amount of mass contained in one mole), the number of moles to be vaporized is:

[tex]15.8 gramsx\frac{1 mole}{32 grams} =0.49375 moles[/tex]

Then, the amount of heat that would be involved in condensing 15.8 g of CH₃OH is calculated taking into account the enthalpy of vaporization by:

0.49375 moles× 38.0 [tex]\frac{kJ}{mol}[/tex]= 18.76 kJ ≅ 18.8 kJ

Finally, the amount of heat that would be involved in condensing 15.8 g of CH₃OH is 18.8 kJ.

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