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
masha68 [24]
3 years ago
14

A pivot at one end supports a beam of uniform density. Archimedes attaches a cable to the beam 1.25 m from its pivoted end. The

cable makes an angle of 25.0° with respect to the beam. The beam is 5.00 m in length and has a mass of 100.0 kg. The pivot exerts significant forces on the end of the beam. Which one of the following choices best describes the magnitude of the tension in the cable?
A. 1855 N.
B. 4638 N.
C. 1960 N.
D. 2319 N.
E. 980 N.
Physics
1 answer:
sergey [27]3 years ago
6 0

Answer:

B.4638 N

Explanation:

We are given that

Distance of cable from its pivot end=1.25 m

\theta=25^{\circ}

Length of beam=5 m

Half length of beam=\frac{5}{2}=2.5 m

Mass =m=100 kg

We have to find the magnitude of tension in the cable .

According to question

Tsin25\times 1.25=100\times 9.8\times 2.5

T=\frac{100\times 9.8\times 2.5}{sin25\times 1.25}

T=4638 N

Hence,option B is true.

You might be interested in
B)A man walks 95 km, East, then 55 km, north. Calculate his RESULTANT
Varvara68 [4.7K]

The resultant displacement of the man is 109.77 km in the direction N60°E.

<h3>Displacement</h3>

Displacement is the distance travelled in a specified direction.

To calculate displacement, the straight line from starting point to end point of travel is taken and calculated.

<h3>Resultant displacement of the man </h3>

In the example above, a man walks 95 km, East, then 55 km, north.

The two distances form a right-angled triangle with two sides 95 and 55 units. The hypotenuse gives the resultant displacement, D.

Using Pythagoras rule:

D^2 = 95^2 + 55^2

D^2 = 12050

D = 109.77

Thus, the resultant displacement is 109.77 km

To calculate the direction:

Let the direction be y

y + x = 90°

tan x = 55/95

tanx x = 0.578

x = 30°

Then, y = 90 - 30

y = 60°

Therefore, the resultant displacement of the man is 109.77 km in the direction N60°E.

Learn more about displacement at: brainly.com/question/321442

8 0
3 years ago
Which best explains why people see carrots as orange
Andru [333]

Beta Carotene is the reason why a carrot is orange. Carotene is a color pigment that is found in large quantities in carrots and it has health benefits as well. The main health benefit of carotene is that our body converts it into vitamin A which is essential.

8 0
3 years ago
Read 2 more answers
You are out for a bicycle ride on a calm, windless day. You are heading northward on a level road and are experiencing a pressur
goldenfox [79]
The answer is (C)= zero but that it is swirling rapidly in all directions.
8 0
3 years ago
The main difference between paraphrasing and quoting is that when you quote a source, you _____.
Katen [24]
The answer is b/ cope a small section word-for-word
3 0
3 years ago
Read 2 more answers
As shown in the figure below, a seal and the penguin are playing a fun game of tag. The penguin first swims rightward
RSB [31]

Answer:

Explanation:

Average velocity = Displacement/Time

ΔS = -10+6

ΔS = -4m

Given tme = 30s

Average velocity = -4/30

Average velocity = -0.13m/s

Average speed = Distance/Time

Total distance covered = 10m+6m

Total distance covered = 16m

Average speed = 16/30

Average speed = 0.53m/s

7 0
3 years ago
Other questions:
  • "Two waves of the same frequency have amplitudes 1.00 and 2.00. They interfere at a point where their phase difference is 60.0°.
    9·1 answer
  • Franz Mesmer believed that his ability to heal people was based on his manipulation of which force
    13·2 answers
  • A supersonic airplane is flying horizontally at a speed of 2650 km/h. What is the centripetal acceleration of the airplane, if i
    5·1 answer
  • A 100-m-long wire carrying a current of 4.0 A will be accompanied by a magnetic field of what strength at a distance of 0.050 m
    13·1 answer
  • 386.5<br>- 129.18 what is it​
    8·2 answers
  • Which statement is true? Which statement is true? An orbital that penetrates into the region occupied by core electrons is more
    10·1 answer
  • In a reaction the mass of a reactant decreases by 58g in 233 seconds. What is the rate?
    6·1 answer
  • How high must you lift a 25 Newton book for it to have the same increase in potential energy as a 20 Newton book that was lifted
    12·1 answer
  • An octave is the Question 3 options: a) absolute frequency difference between two notes in the same interval. b) musical distanc
    12·1 answer
  • Name one non-metal that is a good conductor and why??​
    8·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!