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Diano4ka-milaya [45]
3 years ago
12

Find the pressure exerted by the water bed on the floor when the bed rests in its normal position. Assume the entire lower surfa

ce of the bed makes contact with the floor. SOLUTION When the water bed is in its normal position, the area in contact with the floor is 4.00 m2. Use the the definition of pressure to find the pressure (in Pa). P = Mg 4.00 m2 = Pa EXERCISE A carpenter decides to build a very sturdy bedframe to support the water bed. The frame has four legs, each with a square bottom with side length 7.0 inches. The bedframe weighs 110 kg. What is the pressure (in Pa) exerted by the water bed on the floor when it is supported by the bedframe?
Engineering
1 answer:
LenaWriter [7]3 years ago
7 0

A water bed is 2.00m on a side and 30.0cm deep. Find the pressure that the water bed exerts on the floor. Assume that the entire lower surface of the bed makes contact with the floor.

Density of water, ρ=1000kg/m^3 g=10m/s

This is the missing part of the question.

Answer:

102343.75 Pa

Explanation:

Lenght of bed = 2 m on each side

Depth = 30 cm = 0.3 m

Volume of bed = 2 x 2 x 0.3 = 1.2 m^3

Weight of the bed = pgv

Where p = density of water

g is acceleration due to gravity 10 m/s^2.

V is the volume

Weight of bed = 1000 x 10 x 1.2 = 12000 N

Mass of bed frame = 110 kg

Weight of bed frame = 110 x 10 = 1100 N

Total weight of bed frame and bed = 12000 + 1100 = 13100 N

Side lenght of bed leg = 7 in = 0.1778 m

Area of each bed frame leg = 0.1778 x 0.1778 = 0.032 m2 (legs are square faced)

Total surface area = 0.032. X 4 = 0.128 m2.

Pressure exerted on floor = total weight ÷ area

= 13100/0.128

= 102343.75 Pa

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Maurinko [17]

Answer & Explanation:

function Temprature

NYC=[33 33 18 29 40 55 19 22 32 37 58 54 51 52 45 41 45 39 36 45 33 18 19 19 28 34 44 21 23 30 39];

DEN=[39 48 61 39 14 37 43 38 46 39 55 46 46 39 54 45 52 52 62 45 62 40 25 57 60 57 20 32 50 48 28];

%AVERAGE CALCULATION AND ROUND TO NEAREST INT

avgNYC=round(mean(NYC));

avgDEN=round(mean(DEN));

fprintf('\nThe average temperature for the month of January in New York city is %g (F)',avgNYC);

fprintf('\nThe average temperature for the month of January in Denvar is %g (F)',avgDEN);

%part B

count=1;

NNYC=0;

NDEN=0;

while count<=length(NYC)

   if NYC(count)>avgNYC

       NNYC=NNYC+1;

   end

   if DEN(count)>avgDEN

        NDEN=NDEN+1;

   end

   count=count+1;

end

fprintf('\nDuring %g days, the temprature in New York city was above the average',NNYC);

fprintf('\nDuring %g days, the temprature in Denvar was above the average',NDEN);

%part C

count=1;

highDen=0;

while count<=length(NYC)

   if NYC(count)>DEN(count)

       highDen=highDen+1;

   end

   count=count+1;

end

fprintf('\nDuring %g days, the temprature in Denver was higher than the temprature in New York city.\n',highDen);

end

%output

check the attachment for additional Information

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Which of the following can effect LRO?
aleksley [76]

Answer:

The lunar radiation environment, allowing scientists to determine potential impacts to astronauts and other life. It also will test models on the effects of radiation and measure radiation absorption by a type of plastic that is like human tissue. The results could aid in the development of protective technologies to help keep future lunar crew members safe. CRaTER was built and developed by Boston University and the Massachusetts Institute of Technology in Boston.

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3 years ago
An insulated rigid tank is initially evacuated. A valve is opened, and atmospheric air at 95 kPa and 17 ºC enters the tank until
Darya [45]

Answer:

T2= 406k

Explanation:

The temperature can be defined as the measurement of the intensity of the heat present in the object. Fahrenheit, kelvin and centigrade are the common scale used for measuring Temperature.

Given:

T1=170C

To convert to Kelvin

= 17+273 =290K

T1 = 290K

Pressure (P)= 95KPa

Specific heat ratio = CP/CV= K

WhereK=1.005/0.718

K = 1.4

The final temperature can be calculated using the formula below.

T2 = CP/CV × T1

=. K × T1

T2 = 1.4 × 290

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5 0
3 years ago
declare integer product declare integer number product = 0 do while product &lt; 100 display ""Type your number"" input number p
Brilliant_brown [7]

Full Question

1. Correct the following code and

2. Convert the do while loop the following code to a while loop

declare integer product

declare integer number

product = 0

do while product < 100

display ""Type your number""

input number

product = number * 10

loop

display product

End While

Answer:

1. Code Correction

The errors in the code segment are:

a. The use of do while on line 4

You either use do or while product < 100

b. The use of double "" as open and end quotes for the string literal on line 5

c. The use of "loop" statement on line 7

The correction of the code segment is as follows:

declare integer product

declare integer number

product = 0

while product < 100

display "Type your number"

input number

product = number * 10

display product

End While

2. The same code segment using a do-while statement

declare integer product

declare integer number

product = 0

Do

display "Type your number"

input number

product = number * 10

display product

while product < 100

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4 years ago
Suppose the country of Bangladesh wants a low interest loan to invest in the building of infrastructure. Which international org
musickatia [10]

Answer:

C. UNDP or World Bank.

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Suppose the country of Bangladesh wants a low interest loan to invest in the building of infrastructure. The international organizations which Bangladesh would most likely turn to are UNDP or World Bank.

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