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e-lub [12.9K]
4 years ago
15

Which of the following will cause a decrease in gas pressure in a closed container?

Physics
1 answer:
expeople1 [14]4 years ago
8 0
Lowering the temperature will cause a decrease in gas pressure in a closed container. The correct answer is A, lowering the temperature. 
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A ship's boiler steam comes out at 112 C and pushes through the system, exiting into the condenser,
solniwko [45]

Answer:

D: 0.239

Explanation:

Equation for ideal efficiency is;

η = 1 - (T_c/T_h)

We are told that;

steam comes out at 112° C. Thus, T_h = 112°C. Converting to Kelvin gives; T_h = 112 + 273 = 385 K

The one exiting into the condenser is kept at 20°C. Thus; T_c = 20 + 273 = 293 K

Thus;

η = 1 - (293/385)

η = 0.239

5 0
3 years ago
A manufacturer sells two goods, one at a price of $1000 a unit and the other at a price of $16,500 a unit. A quantity q1 of the
vaieri [72.5K]

Answer:

manufacturing cost = $16.5 q₂ + $1 q₁ - $ 5

Explanation:

given,

one unit price of  first good is = $ 1000

one unit price of second good is = $ 16500

quantity of the first good = q₁

quantity of the second good = q₂                      

total cost to the manufacturer =  $ 5000

revenue from  good one = $1000 q₁                    

revenue from second good = $16500 q₂                      

manufacturing cost = total revenue - total manufacturing cost

manufacturing cost = $16500 q₂ + $1000 q₁ - $ 5000        

but in the question we have to answer in thousands of dollar

so, divide the result by 1000                  

manufacturing cost = $16.5 q₂ + $1 q₁ - $ 5                

4 0
4 years ago
Think of one example where Bob would need to calculate the net force on a person at the water park.
gregori [183]
Well Bob would need to calculate to net force of someone going down a water slide. Since the person is going down the slide, the person will go faster, depending on their mass/weight and the gravitational pull. As phrased in Newton’s Second Law.


Newton’s Second Law:
Newton's second law of motion pertains to the behavior of objects for which all existing forces are not balanced. The second law states that the acceleration of an object is dependent upon two variables - the net force acting upon the object and the mass of the object.
7 0
3 years ago
A ramp with a mechanical advantage of 8 lifts objects to a height of 1.5 meters how long is the ramp
AlekseyPX

<u>Given data:</u>

M.A. =  8 (No units),

Ramp height (h)= 1.5 m, lifted,

Determine how long is the ramp=?

<em>General formula </em>

<em> Mechanical Advantage = (Ramp length) ÷ (Ramp height),</em>

<em>                              M.A = l  ÷ h </em>

<em>                                   8 × 1.5 = l = 12 m long</em>

<em>length of the ramp l ramp = 12 m</em>



5 0
3 years ago
Any ideas for the science fair? I am a 7th grader but looking for a first-place type of project.Thanks!
mihalych1998 [28]
U can do what is the strongest paper towel
7 0
4 years ago
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