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umka21 [38]
3 years ago
10

How are the input and output forces of the parts of a complex machine related?

Chemistry
1 answer:
Nataliya [291]3 years ago
4 0
For machines such as a rake the output force is less than the input force. If the input force of the rake is 10 newtons and the output force is 5 Newtons mechanical advantage is .5
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A sample of methane occupies a volume of 174.0 mL at 25 C and exerts a pressure of 1030.0 mmHg if the volume of the gas is allow
PolarNik [594]

Answer:

The pressure will be 0,37 atm.

Explanation:

We use the Boyle Mariotte´s formula,where for a given mass of gas, at constant temperature, the pressure and temperature vary inversely proportionally. We see here that the initial and final temperature does not vary (298K).

We convert the unit Celsius into Kelvin (0 ° C = 273K) and the unite mmHg into atm (760mmHg=1 atm):

25°C= 25+273=298K   ; (1060mmHgx 1 atm)/760mmHg)=1,39 atm.

We convert unit of volume from ml to L: 174/1000=0,174L and 650/1000=0,650L

P1xV1= P2xV2

1,39 atm x 0,174L =P2 x0,650L

P2= (1,39 atm x 0,174L)/0,650L= 0,37 atm

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3 years ago
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NEED HELP ASAP!!! What is the density of each of the following gases at STP? Show your work.
BaLLatris [955]

Answer:

A. 1.63g/dm^3 (3 s.f.)

B. 0.833g/dm^3 (3 s.f.)

C. 1.92g/dm^3 (3 s.f.)

Explanation:

Please see attached picture for full solution.

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3 years ago
The type of environment that is suitable for a certain species is its _____.
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The type of environment that just fits the characteristics of a certain species is called a habitat.
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Why is DNA important?
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Answer:

DNA is pivotal to our growth, reproduction, and health. It contains the instructions necessary for your cells to produce proteins that affect many different processes and functions in your body. Because DNA is so important, damage or mutations can sometimes contribute to the development of disease

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The majority of the world’s water is stored in?
aniked [119]

Answer:

Ocean

Explanation:

97 percent of the water in the world is in the ocean.

The 3 percent of freshwater is located in lakes, streams, glaciers, and can be found underground.

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