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
choli [55]
2 years ago
12

HELP ME PLZ!!! Two lifeguards pull on ropes attached to a

Physics
1 answer:
yan [13]2 years ago
7 0

When both pull in the same direction, their net is 352.
When they pull in opposite directions, the net in one direction is 157.

If you want to set up the system of equations,
you should start with

                                   A + B  =  352
                                   A  - B  =  157 .

then add them, etc.

You'll find that

-- Guy-A is the stronger one. 
   He's the one who moves to the other side,
   and he pulls with  254.5 newtons both times.

-- Guy-B is the less strong one.
   He stays put, and pulls with 97.5 newtons.
 
You might be interested in
A uniform disk with a mass of 5.0 kg and diameter 30 cm rotates on a frictionless fixed axis through its center and perpendicula
igomit [66]

Answer:

Angular acceleration of the disk will be \alpha =10.714rad/sec^2

Explanation:

We have given mass of the disk m = 5 kg

Diameter of the disk d = 30 cm = 0.3 m

So radius r=\frac{d}{2}=\frac{0.3}{2}=0.15m

Moment of inertia of disk is given by I=\frac{1}{2}mr^2=\frac{1}{2}\times 5\times 0.15^2=0.056kgm^2

Force is given by F=4 N

Torque is given as \tau =Fr=4\times 0.15=0.6N-m

We also know that torque is given by \tau =I\alpha

0.6=0.056\times \alpha

\alpha =10.714rad/sec^2

5 0
3 years ago
As a result of nuclear fusion, the sun produces what 2 types of energy ??
ELEN [110]

Answer:

heat energy and nuclear energy

Explanation:

as a resukt of nuclear fusion, the sun produces two types of energy.

1. heat energy

2. nuclear energy

3 0
3 years ago
Is it accurate to describe the physical universe as composed of only matter and energy?
Dennis_Churaev [7]
Yes, it is <span>accurate to describe the physical universe as composed of only matter and energy. Some people might argue about the dark matter, but it is not yet defined properly. Different universes can be made up of different compositions but it is a fact that our universe is made of matter and energy. </span>
7 0
3 years ago
Read 2 more answers
3. Ecology
Korvikt [17]

Answer:

The family would not have hot water unless they were to heat the the water. They would have to depend on the stove in order to survive by heating the house to say alive and not freeze. They would also have to depend on the stove to get hot water to do any, but if the sun goes away for too long and everything starts to die then they will have to use what food and wood that they have in order to survive.

Explanation:

6 0
3 years ago
In a isovolumetric process the is constant.
V125BC [204]

Answer:

An isothermal process is a change of a system, in which the temperature remains constant: ΔT = 0.

Explanation:

:)

3 0
3 years ago
Other questions:
  • Which of the following statements about convection is true? A Convection can only occur during the process of boiling B Convecti
    5·1 answer
  • The position of a 2.2 kg mass is given by x=(2t3â5t2) m, where t is in seconds.
    11·1 answer
  • A food department is kept at 2128C by a refrigerator in an environment at 308C. The total heat gain to the food department is es
    15·1 answer
  • How long would it take you too run the 100m sprint if from rest you accelerate at 2m/s/s for the whole race?
    10·1 answer
  • Which of the following are places that you can work out
    9·2 answers
  • What is mass? what is mass ?<br>​
    10·2 answers
  • A steel rope is used to lift a 26 kg slab of concrete from the ground to a height of 20 m. Assume that the rope moves the concre
    13·1 answer
  • A frictionless piston-cylinder contains carbon dioxide gas (CO2) initially at 500oC and 2 MPa. The system is o3 cooled in an iso
    12·1 answer
  • Motion is changing all the time. When you stand up, begin to run, or turn a corner, your motion is changing. These changes in mo
    10·1 answer
  • If Cadmium has an atomic number of 48 and an atomic mass of 112 and it undergoes alpha decay, what is the new element produced?
    10·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!