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spayn [35]
3 years ago
9

The efficiency of a machine cannot be 100 percentageJustify this statment​

Chemistry
1 answer:
andre [41]3 years ago
3 0

Answer:

A machine cannot be 100 percent efficient because output of a machine is always less than input. A certain amount of work done on a machine is lost to overcome friction and to lift some moving parts of the machine.

Explanation:

hope it help you

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The element found naturally in the earth that has the heights atomic number is
Kobotan [32]
The element found naturally in the earth , that has the highest atomic number is 7

5 0
4 years ago
Which compound 2-bromo-2-methylpropane or 2-chloro-2-methylpropane?
AURORKA [14]
The 2-bromo-1-chloro-2-methylpropane molecule contains a total of 14 atom(s). There are 4 Carbon atom(s), 8 Hydrogen atom(s), 1 Chlorine atom(s) and 1 Bromine atom(s). A chemical formula of 2-bromo-1-chloro-2-methylpropane can therefore be written as C4H8BrCl. Is it also commonly called as Propane.
6 0
4 years ago
According to Wookieepedia, Kylo Ren stands 1.89 m tall and his mass is 89 kg. Calculate his earth-weight in lbm. (2 pts) a. b. A
harina [27]

Answer:

a) 6312.12 lbm

b)  D = 11.843 inch

Explanation:

GIVEN DATA:

Height of person = 1.89 m = 74.41 inch

mass of person m = 89 kg = 196.211 lbm

a) person earth weight =mg

where g is acceleration due to gravity = 32.17 ft/sec^2

                                     = 196.211\times 32.17 = 6312.12 lbm

b) waist to height ratio = 0.5

waist\ to\  height\  ratio = \frac{circumference\ of\ the\ waist}{height\ of\ the\ person}

circumference of waist =height\  of\  person \times waist\ to\ height ratio

                                       = 74.41 inch \times 0.5

                                        =37.21 inch

we know that circumference is given as = 2\pi r\ or\  \pi D= 37.21

                                                               D = 11.843 inch

6 0
3 years ago
The starship Voyager, like many other vessels of the newly designed 24th-century fleet, uses antimatter as fuel.(b) When the ant
Drupady [299]

When the antimatter is atomic antihydrogen, a small amount of it is mixed with excess atomic hydrogen (gathered from interstellar space during flight).

<h3>What is antimatter ?</h3>

According to contemporary physics, antimatter is described as being made up of the opposite particles from "ordinary" matter, or their "partners." Only a few nanograms of antiparticles have been created artificially, but tiny quantities of antiparticles are produced every day at particle accelerators and in natural processes like cosmic ray collisions and some types of radioactive decay. However, only a small portion of these antiparticles have been successfully bound together in experiments to form antiatoms. Antimatter has never been built in a macroscopic amount due to its extremely high cost, complexity in synthesis, and handling.

A particle and its antiparticle, such as a proton and an antiproton, theoretically have the same mass but the opposite electric charge and other variations in quantum numbers.

To learn more about antimatter from the given link:

brainly.com/question/518346

#SPJ4

8 0
2 years ago
Does anyone know o I'm correct? If not what's the answer?
igomit [66]
I believe it means idea because a Web is out line to a a more structured idea
6 0
3 years ago
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