Suppose a man has a mass of 76kg and a density of 0.92g/cm3.

A) Calculate his volume.

b) Calculate the mass of air that he displaces, using the density of air from Table 5.2. The density of air is 1.29kg/m3

c) Calculate the buoyant force on him due to the air he displaces and compare this to his weight in newtons.

Answers

Answer 1

Answer:

A) 0.08260 cubic meter

B) 106.554 grams

C) 1.044 Newton

Step-by-step explanation:

A) Volume = mass/density

Substituting the given values, we get -

Volume = [tex]\frac{76000}{0.92} =82608.69[/tex] cubic centimeter

[tex]= 0.08260[/tex] cubic meter

B) Mass = volume * density

Mass of air =

[tex]= 0.08260 * 1.29 \\= 0.106554\\[/tex]Kilogram

[tex]106.554[/tex] grams

C) Buoyant force = density * acceleration due to gravity * Volume

Buoyant force due to air  =

[tex]0.08260 * 9.8 * 1.29 \\1.044[/tex]Kg-m/s or Newton


Related Questions

f(x)=∣x∣
g(x)=∣x−1∣+9

We can think of g as a translated (shifted) version of f
Complete the description of the transformation.

Answers

Answer:

Step-by-step explanation:

There are two transformations, one vertical, one horizontal.

The + 9 part outside the absolute value sign moves the graph up 9 units.

Replacing  x  with  x - 1 moves the graph right 1 unit.

Comment:  The horizontal shifts sometimes appear backwards:  x - 1 looks like a shift to the left, but it's not.

Example:  f(4) = |4| = 4.  To get the same output (4) from g(x), you have to use a value for  x  that is 1 unit larger than 4.  g(5) = |5 - 1| = 4.

Emily wants to know the volume of a beach ball. She deduces that the beach ball has diameter of 12 inches, and then uses the following formula to find the volume: (3.14) (12) V = (3.14) (1728) (5425.92) V=7234.56 cubic inches Emily's answer is incorrect. What did she do wrong? She used the formula for a cylinder instead of the formula for a sphere She used the formula for a sphere instead of the formula for a cone. Multiplying (314)(1728) does not equal 5425.92. She used the beach ball's diameter when she should have used the radius​

Answers

Answer:

D. She used the beach's ball's diameter when she should have used the radius

Step-by-step explanation:

To find the volume of the beach ball, using the volume of a sphere is the right formula to use, which is ⁴/3πr³.

The formula she used is correct.

Since the diameter of the ball is assumed to be 12 inches, what is needed to find the volume is the radius.

Radius (r) = ½(diameter) = ½(12) = 6 in.

This is where Emily made a mistake.

She used the diameter of the beach ball instead of its radius (r) which is needed in the equation.

She should have gotten,

V = ⁴/3(3.14)(6)² = 904.32 cubic inches

Darnell is ordering food for a party. He can get 2 pizzas and 8 sandwiches for $65 or 5 pizzas and 3 sandwiches for $77.50. What would be the total cost of 1 pizza and 1 sandwich? please help me

Answers

Answer:

Jan 22, 2017 — Three pizzas and seven sandwiches cost $41.50 How much does a pizza cost? Follow • 2 ... equations and solve for p to get cost of a pizza.

Step-by-step explanation:

A 3rd3^{\text{rd}}3rd3, start superscript, start text, r, d, end text, end superscript degree binomial with a constant term of 8888

Choose 1 answer:

Choose 1 answer:


(Choice A)

A

8x3+2x+38x^3+2x+38x3+2x+38, x, cubed, plus, 2, x, plus, 3

(Choice B)

B

2x8+32x^8+32x8+32, x, start superscript, 8, end superscript, plus, 3

(Choice C, Checked)

C

x3−x2+8x^3-x^2+8x3−x2+8x, cubed, minus, x, squared, plus, 8

(Choice D)

D

−5x3+8-5x^3+8−5x3+8minus, 5, x, cubed, plus, 8

Answers

Answer:

[tex]-5x^3 + 8[/tex]

Step-by-step explanation:

See comment for complete question

Given

[tex]Degree \to 3rd[/tex]

[tex]Constant \to 8[/tex]

[tex]Type \to Binomial[/tex]

Required

Which of the options is true

[tex]Type \to Binomial[/tex]

This implies that the polynomial has just 2 terms

The above shows that (a), (b) and (c) are not true because they have more than 2 terms

[tex]Degree \to 3rd[/tex]

This implies that the highest power of x is 3

[tex]Constant \to 8[/tex]

The second term of the polynomial must be +8

Only (d) satisfy the above conditions

There are two laundry trucks One laundry truck visits Roxanne's house every 3 days and another laundry truck visits her neighborhood every 4 days. When will both the trucks next visit on the same day ?

Answers

Answer:

Evey 12 days  both  of the trucks visit on the same day

Step-by-step explanation:

The LCM of 3 and 4 is 12, because 12 is the smallest number that 3 and 4 are both factors for.

i need help with geometry

Answers

Answer:

Pyramid

Step-by-step explanation:

What is the nth term rule of the quadratic sequence below?

6,12,20,30,42,56,72

Answers

Answer:

Step-by-step explanation:

The first term is 6. The difference between the first two terms is 6. The first differences are 6,8,10,12,etc. so the second differences are 2’s.

quadratic formula: an^2+bn+c

2a=second difference=2

3a+b=first differece =6

a+b+c=first term=6

substitute: a=2/2=1, 3(1)+b=6 so b=3, 1+3+c=6 so c=2

nth term= n^2+3n +2

State of the two triangles are congruent if they are state how you know.

Answers

Answer: asa

Step-by-step explanation:

The angles are congruent as given and the side js shared and in between so its asa C:

The following frequency table shows the observed high temperatures in Buffalo, New York, in May 2007.

Which interval contains the median temperature?
A.)50 - 59
B.)60 - 69
C.)70 - 79
D.)80 - 89

Answers

B)60-69

I guess option B is correct as it's frequency is higher

Answer:

answer is B. 60-69

Step-by-step explanation:

because I said so?

It’s a multiple choice so it’s like 3 answers but help please

Answers

Answer:

b g and e

Step-by-step explanation:

The cost of 15 kg of apples is $262.50. Find the cost of 25 kg of apples

Answers

Answer:

525.00

Step-by-step explanation:

The cost of 25 kg of apples is $437.5.

What do we mean by cost ?

"A cost is an expenditure required to produce or sell a product or get an asset ready for normal use. In other words, it’s the amount paid to manufacture a product, purchase inventory, sell merchandise, or get equipment ready to use in a business process.

There are many different costs, including fixed and variable, but they are all accounted for in the same way. Costs are recorded as expenses on the income statement during and accounting period and cleared out in a closing entry at the end of the period."

The cost of 15 kg is $262.50.

So, the cost of 1 apple is 262.50/15

= 17.5

Cost of 25 kg = [tex]17.5 * 25 = 437.5[/tex]

Hence, the cost of 25 kg of apples = 437.5

To know more about cost here

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choose all the equations for which X = 1/2 is a solution

Answers

C, D,E

Step-by-step explanation:

4x=2

4+x=4 1/2

16x=8

For a-e, choose Yes or No to tell whether each term is equivalent to
the slope in a proportional relationship.

Answers

Answer:

Step-by-step explanation:

Let the equation of a proportional relation is,

y = mx

Here, m = Slope Or proportionality constant of a linear function

a). Constant of proportionality → YES

b). Origin → NO (Since, origin is a point lying on the line)

c). Inverse → NO

d). [tex]\frac{\text{Rise}}{\text{Run}}[/tex] → Since, ratio of rise and run is equal to the slope of the line.

    YES

e). Unit rate → It's ratio of y and x values which is equivalent to the slope.

    Therefore, answer is YES.

If you try to fail and succeed, then which have you done?
(ㆆ _ ㆆ)

Answers

you just succeed at failing ;)

Answer:

You have succeeded to fail XD

Walter accepted a new job with an annual salary of $47,500. How much can he expect to earn after paying income taxes?

Answers

Answer:

$35625

Step-by-step explanation:

He will pay 25% income tax as per table.

He will earn after tax:

47500*(1 - 0.25) = 47500*0.75 = 35625

a farmer needs to build a 60m fence sections of fence are 80cm long how many does the farmer need?​

Answers

Step-by-step explanation:

....................

PLS HURRYYYYYYYY
Which word describes the 5 in the expression 5n? A. coefficient B. exponent C. product D. sum

Answers

Answer:

Step-by-step explanation:

It would be either A or C

Most likely A Hope this helps ya <3

The word describing 5 in the given expression is a coefficient.

What is an expression?

An expression, in math, is a sentence with a minimum of two numbers and at least one math operation in it.

Given that an expression 5n, we need determine the word used for number 5,

We know that, the numbers connected to a variable by multiplication is called a coefficient.

Here,

5n = 5 × n,

n = variable, 5 = coefficient.

Hence the word describing 5 in the given expression is a coefficient.

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Decide whether the triangle can be proven congruent I need help

Answers

Answer:

I think AAS can be used

Step-by-step explanation:

:( I need HEEEEEEEEELP

Answers

Answer:

My guess is 10 because out of the 14 donuts in the graph half of them are jelly filled so following the stats half of the 20 donuts will be jelly filled making 10 half of 20.

I need help with a and b ASAP

Answers

Answer:

A is (-3,0) and (1,0).

B is (-1, -2).

Step-by-step explanation:

To find the x-intercepts, look along the x-axis and where the line goes through it. Those two locations are your answer.

To find the vertex, you can find the axis of symmetry by taking its equation and putting it into the form of x = -b/2a or finding the lowest or highest point in the line. In this example, it is (-1, -2) as the lowest point, and there is not a highest point to find, since it is in a u-shape.

can someone help me pls?​

Answers

The answer is number two

Answer:

the answer would be 3! I hipe this helps

If 9:3 is equal to 3:1 and then what is 12:4 equal to ?

Answers

Answer:

36:12 or 3:1

Step-by-step explanation:

12:4= 36: 12

or 12:4 simplify= 3:1

hope it helps

Evaluate
[tex] {9 }^{2} - {7 }^{2} \\ {2}^{3} [/tex]

Answers

ANSWER:

[tex] {9}^{2} - {7}^{2} \div {2}^{3} \\ = 74.875[/tex]

Hope it helps you

True or false
You always have to use x and y as your variables when writing
equations for word problems.

Answers

Answer:

false

Step-by-step explanation:

you can use whatever letters you want to represent things. x and y make sense that you would use just them for graphing, but if it is a word problem you could have like c for cost or t for time or something

i will give brainliest
Ben is greeting customers at a music store. Of the first 20 people he sees enter the store, 7 are wearing jackets and 13 are not. What is the experimental probability that the next person to enter the store will be wearing a jacket? Enter your answer as a simplified fraction.

Answers

Answer:

hmm... this seems hard. Anyways I'll just do it!

The correct answer should be 7/20

Step-by-step explanation:

Answer:

13/20

Step-by-step explanation:

If 13 people out of 20 people Ben sees entering the store with jacket, then the probability for the next person to wear jacket is 13/20 which is 0.65.

Hope it helps u.

Please mark as the brainliest

Thank You

What is the volume of the right rectangular prism, in cubic centimeters?

Answers

Answer:

108 units

Step-by-step explanation:

Volume = length × width × height

V = 4 × 3 × 9

V = 108 units

Find the scale factor of a model train if the scale is 1 inch = 4 feet.

Answers

Answer:

1

Step-by-step explanation:

The scale factor is 1:48

4 feet = 48 inches, so 1:48

solve the system of equations x-y=-14 and 5x+7y=-10 by combining the equations.

Answers

Answer:

x+y=-4

Step-by-step explanation:

you need to solve this using elimination!

add both equations to each other:

x-y=-14

5x+7y=-10

the answer would be

6x+6y=-24

to go further,

it would be....

x+y=-4

because you can divide both sides by 6

hope this helped <33333

twice a number divided by 3

Answers

Answer:

3/4

Step-by-step explanation:

If Amy has 5 apples and she eats 3 how many does she have left?

Answers

Answer:

2 apples.

Step-by-step explanation:

Answer:

She has 2 more apples left!

Step-by-step explanation:

Simple: this is the equation: 5 - 3 = 2!

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