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
Goryan [66]
3 years ago
12

Consider a horizontal, uniform board of weight 125 N and length 4 m that is supported by vertical chains at each end. A person w

eighing 500 N is sitting on the board. The tension in the right chain is 250 N
What is the tension in the left chain?

a. 250 N
b. 375 N
c. 500 N
d. 625 N
e. 875 N
Physics
1 answer:
Norma-Jean [14]3 years ago
5 0

Answer:

b. 375 N

Explanation:

System of forces in balance

ΣFy = 0 Equation (1)

Forces acting on the board

T₁: Tension in the  left chain ,  vertical and upward

T₂ = 250 N : Tension in the right chain ,  vertical and upward

W₁ = 125 N : Weight of the  board , vertical and downward

W₂ =  500 N : Weight of the  person , vertical and downward

Calculation of the T₁

We apply the Equation (1)

ΣFy = 0  

T₁+T₂-W₁-W₂ = 0

T₁ = -T₂+W₁+W₂

T₁ = -250 N+ 125 N+ 500 N

T₁ = 375 N

You might be interested in
A unit of power equal to 746 watts is a
NemiM [27]
≈ 746 watts is a 1 Horsepower, because that's in the SI base unit. 
4 0
3 years ago
Why do thunderstorms most often occur in the summer months?
777dan777 [17]

Answer:

Because moisture and warmth are crucial to thunderstorms

6 0
3 years ago
At what height does a 1000-kg mass have a potential energy of 1J relative to the ground? Be sure to show all work to support you
nikdorinn [45]
Potential energy = (mass) x (gravity) x (height)

       1 joule  =  (1,000 kg) x (9.8 m/s²) x (height)

       Height =  1 joule / (9,800 newtons)

                   =  1/9800 meter

                   =  0.000102 meter

                   =   0.102 millimeter    (rounded) 
7 0
3 years ago
List 3 main types weathering​
swat32

Answer:

Weathering is the breakdown of rocks at the Earth's surface, by the action of rainwater, extremes of temperature, and biological activity. It does not involve the removal of rock material. There are three types of weathering, physical, chemical and biological.

Explanation:

Please give brainlest and points!

5 0
3 years ago
Read 2 more answers
Al +
Galina-37 [17]

Answer:

physic, is natural science of motion and behavior

5 0
2 years ago
Other questions:
  • A wind farm generator uses a two-bladed propeller mounted on a pylon at a height of20 m. The length of each propeller blade is 1
    8·1 answer
  • Which of the following is not a petroleum product
    11·1 answer
  • Which object has more gravitational potential energy? Use PE = m × g × h, where g = 9.8 meters/second2.
    6·2 answers
  • This is a map that shows hot spots around the world.
    8·2 answers
  • Raising the temperature of a gas will increase its pressure if the volume of the gas
    7·1 answer
  • The voltage across the terminals of an ac power supply varies with time according to V=V0cos(t). The voltage amplitude is V0 = 4
    5·1 answer
  • They create a heat engine where the hot reservoir is filled with water and steam at equilibrium, and the cold reservoir is fille
    8·1 answer
  • which of the following cannot be increased by using a machine of some kind? work, force, speed, torque
    5·1 answer
  • light waves are first transmitted through the ________ at the front of the eye and enter an opening called the ________ before s
    10·1 answer
  • Need help asap
    8·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!