A 1.0 kg book is lifted 0.5 m above the table , but the table is 1.0 m above the floor , what would be the P.E of the book if the reference level where the floor ?

Answers

Answer 1
Answer: The height of the book from the ground = 1.0 m + 0.5 m = 1.5 m 

The mass of the book = 1 kg

We know that = 

P.E.=m*g*h

Taking 'g' as 9.8 m/s² and putting the values in the formula we get -

P.E.=1*9.8*1.5

P.E.=14.7 Joules

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What is the most current NASA mission on Mars?

Answers

The most recent NASA mission on Mars is Mars Science Laboratory. Its key component was Curiosity rover.
Rover has celebrated his first landing anniversary yesterday (Martian year, that is 687 Earth days).
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What causes flaming combustion to occur?Select one:
a. A solid fuel mixes with an adequate amount of liquid fuel to be able to sustain an open burning flame.
b. A gaseous fuel mixes with an adequate amount of oxygen and heats to ignition temperature.
c. A solid fuel encounters an open flame and entrains enough air to ignite.
d. A gaseous fuel encounters an external heat source and experiences piloted ignition.

Answers

The option that is correct as regards flaming combustion from the question is A solid fuel mixes with an adequate amount of liquid fuel to be able to sustain an open burning flame.

  • Combustion can be regarded as exothermic redox chemical reaction  which occurs at high temperature between fuel as well as an oxidant.

  • This oxidant is  usually atmospheric oxygen, and the results are mixture of gases which do appear as smoke.

  • For this flaming combustion to occur, there should be mixture of solid fuel as well as liquid fuel so that the burning flame can be sustained.

  • Flaming combustion takes place when both visible flames as well as  plume of a fire are visible.

Therefore,  option A is correct.

Learn more at:

brainly.com/question/14177748?referrer=searchResults

Answer is A(Soild Fuil

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What is water made up of?

Answers

Pure water is made up of a huge number of water molecules.

Each water molecule is made of two Hydrogen atoms and one
Oxygen atom, locked together by the electrons they share.
2 Hydrogen and 1 Oxygen otherwise known as H2O, if that's what your looking for

When fossil are burned, their chemical potential energy is converted into?

Answers

Fossil fuel is a source of non-renewable energy. There are many examples of fossil fuels which we use in our daily lives. In fact, most of the energy that we consume is fossil fuels. Coal, petroleum, natural gas, these are all considered as fossil fuels. Many years ago, to be specific, during the carboniferous age, due to the change in atmospheric condition and other changes, there forests were destroyed and they were fossilized. With the action of bacteria and other microorganisms in the surface of the earth, these trees and other vegetation were decayed and disintegrated. Years after these trees were available in solid, liquid and gaseous state. The solid form is coal. It is the most widely used form of fossil fuel in domestic purposes.

Given the diamond shape of a baseball field in the speed of which baseballs or hit why is it harder for a hitter to hit a homerun to the center field then to the right or left field

Answers

Because, say the diamond was 125 feet on both right and left fields, the center field would be 130 feet long, see what i mean? I hope I helped.    :)

A research paper isA. creative, unstructured, first-person writing.
B. casual, third-person, entertaining writing.
C. thoughtful, analytical, academic writing.
D. bullet-pointed, technical, factual writing.

Answers

A research paper is considered to be the work that is a culmination of hundreds of hours of work put into one technical writeup which serves as the groundwork for what was done in that particular research. For that reason, the asnwer to your question would be C - thoughtful, analytical and academic writing.