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
Paraphin [41]
3 years ago
6

A bag of cement weighing 325 N hangs in equilibrium from three wires. Two of the wires make angles of theta1=60.0 degrees and th

eta2=40.0 degrees with the horizontal. Assuming the system is in equilibrium, find the tensions of T1, T2, and T3.
Physics
1 answer:
Murljashka [212]3 years ago
7 0
The sketch of the system is: two strings, 1 and 2, are attached to the ceiling and to a third string, 3.The third string holds the bag of cement. 

The free body diagram of the weight with the string 3, drives to the tension T3 = weihgt => T3 = 325 N

The other free body diagram is around the joint of the three strings.

In this case, you can do the horizontal forces equilibrium equation as:

T1* cos(60) - T2*cos(40) = 0

And the vertical forces equilibrium equation:

Ti sin(60) + T2 sin(40) = T3 = 325 N

Then you have two equations with two unknown variables, T1 and T2

0.5 T1 - 0.766 T2 = 0

 0.866 T1 + 0.643T2 = 325

When you solve it you get, T1 = 252.8 N and T2 = 165 N

Answer: T1 = 252.8 N, T2 = 165N, and T3 = 325N



 
You might be interested in
The practice of science can answer only scientific questions. And scientific
iragen [17]

Evidence might be used to demonstrate their falsity. must apply to all potential solutions to a scientific topic.Option A is correct.

<h3>What is a Scientific hypothesis?</h3>

A scientific hypothesis is the main element in the scientific method and experiment.

It is said that a hypothesis is a scientific hypothesis. The majority must agree on it, or it must be done after thorough experimentation.

Only scientific inquiries can have their answers provided by scientific endeavor. Scientific concerns have an impact on the research's design as well.

Evidence might be used to demonstrate their falsity. must apply to all potential solutions to a scientific question.

Hence option A is correct.

To learn more about the scientific hypothesis refer;

brainly.com/question/2681563

#SPJ1

6 0
2 years ago
Technician a says that shims are sometimes used to adjust camber. technician b says that shims can sometimes be used to adjust c
meriva

I'll have to be honest with you.  I've read both of those opinions several times, carefully, and it looks to me like both technicians are saying exactly the same thing.

Now, my knowledge of shims and camber is limited (to approximately zero), so all I can say to answer the question is this:  If EITHER technician is correct, then they're BOTH correct.

8 0
3 years ago
The trunk of a elephant may extend up to 2.2 m. It acts much like an organ pipe only open at one end when the elephant blows air
Talja [164]

Answer:

1) f = 38.63 Hz , 2)   f = 115.9 Hz

Explanation:

The elephant's trunk can be approximated by a tube with a closed end, in pipes the closed ends correspond to nodes and the open ends to antinodes or bellies.

The expression for the wavelengths of this system is

             4L = n λ

              n = 1, 3, 5, 7 ...

               

also let's use the relationship between frequency and wavelength and wave speed

            v = λ f

             f = v / λ

             f = v n / 4L

             f = v / 4L n

1) the fundamental frequency occurs for n = 1

            f = 340/4 2.2 1

            f = 38.63 Hz

2) The first harmonic

           n = 3

            f = 340/4 2.2  3

           f = 115.9 Hz

5 0
3 years ago
Planet A and Planet B are in circular orbits around a distant star. Planet A is 6.0 times farther from the star than Planet B. F
labwork [276]
The answer is easy if you know the physics. 



<span>a/a' = (r/R)^2 = (r/9r)^2 = 1/81; so that a = a'/81.
A's radial acceleration must be 1/81 of B's. And each acceleration is a = v^2/R and a' = V^2/r, where v and V are the tangential speeds you want the ratio for. </span>

<span>a = v^2/R = v^2/9r = V^2/81r = a'/81 In which case v^2/V^2 = 9/81 = 1/9; so that 1/3 = Va/Vb ANS</span>
8 0
3 years ago
Read 2 more answers
A charge q produces an electric field of strength 4E at a distance of d away. Determine the electric field strength at a distanc
gizmo_the_mogwai [7]

Answer:

c.) 36E

Explanation:

The magnitude of the electric field is given by the expression

E=k \frac{q}{d^2} (1)

where k is the Coulomb's constant, q is the charge that generates the field, and d is the distance from the charge.

In this problem, we have that the magnitude of the field at a distance d is 4E, so we can rewrite the previous equation as

4E = k\frac{q}{d^2}

Now we want to determine the electric field at a distance of d'=\frac{1}{3}d away. Substituting into (1), we find

E' = k \frac{q}{d'^2}=k \frac{q}{(\frac{1}{3}d)^2}=9 k \frac{q}{d^2} (2)

We also know that

4E = k\frac{q}{d^2} (3)

So combining (2) with (3), we find a relationship between the original field and the new field:

E' = 9 \cdot (4E) = 36E

7 0
3 years ago
Other questions:
  • At room temperature of 30 degree celsius, a glass of water takes one minute to cool from 80 degree celsius to 60 degree Celsius.
    12·1 answer
  • 1. Find the kinetic energy of the uniform circular cone of height h, base radius R, and mass M. Rotating with the angular veloci
    7·2 answers
  • Three resistors, each having a resistance, R, are connected in parallel to a 1.50 V battery. If the resistors dissipate a total
    13·1 answer
  • You could use an elevator or the stairs to lift a box to tenth floor.which has greater power?
    12·1 answer
  • neutrons have a mass of 1.675×10 to the negative 27th. determine the kinetic energy of a neutron traveling 20. 5% of the speed o
    6·1 answer
  • Which of these are part of the electromagnetic spectrum?
    9·2 answers
  • The fact that we can define electric potential energy means that:
    11·2 answers
  • PLEASEEE HELPPP!!!
    12·1 answer
  • A railway truck with a mass of 6,000 kg rolling at 4 m/s collides with a stationary truck
    6·1 answer
  • 2 20 points
    12·2 answers
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!