1answer.
Ask question
Login Signup
Ask question
All categories
  • English
  • Mathematics
  • Social Studies
  • Business
  • History
  • Health
  • Geography
  • Biology
  • Physics
  • Chemistry
  • Computers and Technology
  • Arts
  • World Languages
  • Spanish
  • French
  • German
  • Advanced Placement (AP)
  • SAT
  • Medicine
  • Law
  • Engineering
Solnce55 [7]
3 years ago
15

A 50 meter chain with uniform density and a mass of 40 kilograms is hanging from the roof of a building under construction. How

much work (in Nm) is required to pull the chain up?
Mathematics
2 answers:
Brums [2.3K]3 years ago
8 0

Answer:

19,600 Nm

Step-by-step explanation:

WD = mgh

= 40 × 9.8 × 50

= 19600 Nm

sertanlavr [38]3 years ago
5 0

Answer:

W = 19600 N m

Step-by-step explanation:

W = force * distance

The force is the weight times gravity since it is hanging down

W = 40 kg* 9.8 m/s^2 * 50m

    19600 kg m^2/s^2

A newton is  kg m/ s^2

W = 19600 N m

You might be interested in
Solve the equation!3 tan^3θ = tan θ
andreev551 [17]
3 tan³ t(theta) = tan t(theta)
3 tan³ t - tan t = 0
tan t ( 3 tan² t - 1 ) = 0
tan t = 0
t 1 = k π ,  k ∈ Z
3 tan ² t - 1 = 0
3 tan ² t = 1
tan ² t = 1/3
tan t = +/- √3/3
t 2 = π / 6 + k π
t 3 = - π / 6 + k π ,  k ∈ Z
8 0
3 years ago
Round off 174 to the nearest hundred​
shepuryov [24]

Answer: 200

Step-by-step explanation:

174 rounded to the nearest hundred is:

200

When rounding to the nearest hundred, like we did with 174 above, we use the following rules:

A) We round the number up to the nearest hundred if the last two digits in the number are 50 or above.

B) We round the number down to the nearest hundred if the last two digits in the number are 49 or below.

C) If the last two digits are 00, then we do not have to do any rounding, because it is already to the hundred.

pls mark brainliest!

4 0
3 years ago
Read 2 more answers
High School sold tickets to the winter dance for $3.50 in advanced and $5.00 at the door. If 115 people attended the dance and H
klemol [59]

Answer: 3.5a+5b=470 and a+b=115

Step-by-step explanation:

6 0
2 years ago
The sum of two numbers is 40 - 13. what are the integers.
Anni [7]
So. let's say the numbers are "a" and "b"

whatever they're, we know a + b = 56

let's say the larger one is "b", so 3 times the smaller is 3*a or 3a
now, 12 less than that, is 3a - 12

and the larger is that, so b = 3a - 12

so   \bf \begin{cases}
a+b=56\\
\boxed{b}=3a-12\\
----------\\
a+\boxed{3a-12}=56
\end{cases}

solve for "a", to see what the smaller one is

what's b? well, b = 56 - a
6 0
3 years ago
Lisa store collect 5% sales tax on every item sold if she collected $22 and sold thanks what was the cost of the items her store
Bumek [7]
8 divide by 5 X=4-3 and that's the right answer Thank you
3 0
3 years ago
Other questions:
  • Given: f(x) = x - 7 and h(x) = 2x + 3
    11·1 answer
  • brandom have to make 288 cookies for the class it take 2 hours to make 144 cookies if brandon and his mother begin baking at 4:o
    15·2 answers
  • Alex counted to 2400 by 6's beginning with 6. Matthew counted to 2400 by 4's starting with 4. How many of the numbers counted by
    11·1 answer
  • The complex solutions of which equation have a real component of 4?
    7·2 answers
  • Which is the best definition for the term "segment bisector"?
    9·1 answer
  • For which of the following geometric series can the infinite sum be determined? a1 = –0.25, r = –3 a1 = 0.75, r = 4 a1 = 3, r =
    6·1 answer
  • 2/9 divided by 2/3 is??????
    6·1 answer
  • To win a​ lottery, 7 numbers are drawn at random from a pool of 21 numbers. Numbers cannot repeat. If a person has one​ ticket,
    15·2 answers
  • An equilateral triangle has a perimeter of 15x3 33x5 feet. what is the length of each side? x3 feet 5 11x2 feet 5x2 11 feet 5x3
    14·1 answer
  • Can anyone solve this 100+3-4(4-5) divided by 6+5+5+5+300
    12·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!