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
DerKrebs [107]
3 years ago
8

You pull a rope to the left with 300n and a friend pulls it the rope to the right with 425n what is the magnitude and direction

of the result vector
Physics
1 answer:
eduard3 years ago
5 0

Answer: from vector law opposite we minus

Hence

425n-300n=125n to the right

Hints in left vector have -Ve sign while right have +Ve sign

You might be interested in
What will happen when two objects with opposite electric charges are moved closer together?
LenKa [72]
C the objects will repel each other with greater
force
6 0
4 years ago
Read 2 more answers
(8 points) Air is used as the working fluid in a simple ideal Brayton cycle that has a pressure ratio of 12, a compressor inlet
trapecia [35]

Answer:

a ) \dot m = 351.49 kg/s

b)  \dot m_{actual} = 1046.15 kg/s

Explanation:

given data:

pressure ration rp = 12

inlet temperature = 300 K

TURBINE inlet temperature  = 1000 K

AT the end of isentropic process (compression) temperature is

\frac{T_2'}{T_1} = rp ^{\frac{\gamma -1}{\gamma}}

\frac{T_2'}{300} = 12^{\frac{1.4 -1}{1.4}}

T_2' = 610.181 K

AT the end of isentropic process (expansion) temperature is

\frac{T_3}{T_4'} = rp ^{\frac{\gamma -1}{\gamma}}

\frac{1000'}{T_4'} = 12^{\frac{1.4 -1}{1.4}}

T_4' = 491.66 K

isentropic work is given as

w(compressor) = CP (T_2' -T_1)

w = 1.005(610.18 - 300)

w = 311.73 kJ/kg

w(turbine) = 1.005( 1000 - 491.66)

w(turbine) = 510.88 kJ/kg

a) mass flow rate for isentropic process is given as

\dot m = \frac{70000}{510.88 - 311.73}

\dot m = 351.49 kg/s

b) actual mass flow rate uis given as

\dot m_{actual} = \frac{70000}{51.088\times 0.85 - \frac{311.73}{0.85}}

\dot m_{actual} = 1046.15 kg/s

6 0
3 years ago
Can someone help me please
makvit [3.9K]

Answer:

Time, I believe. Pretty sure it's time lol

3 0
3 years ago
What are the characteristics of a blackbody radiator? Give an example.
mihalych1998 [28]

Answer:

A blackbody, or Planckian radiator, is a cavity within a heated material from which heat cannot escape. No matter what the material, the walls of the cavity exhibit a characteristic spectral emission, which is a function of its temperature.

Example:

Emission from a blackbody is temperature dependent and at high temperature, a blackbody will emit a spectrum of photon energies that span the visible range, and therefore it will appear white. The Sun is an example of a high-temperature blackbody.

3 0
3 years ago
What occurs when salt is evenly mixed with water
zimovet [89]
The more you mix salt with water the more the salt will dissolve
The act of dissolving in chemistry describes a physical change such as change in shape or state. Its important to remember that physical change does not change the chemical state.  

Hoped my answer helped! 
8 0
4 years ago
Read 2 more answers
Other questions:
  • answers If the motor is to accelerate the elevator car upward at 1.8 m/s2, how much torque must it generate
    13·1 answer
  • The amount of a fossil fuel that can be extracted at a profit using current technology is called what?
    11·1 answer
  • Which types of orbitals are found in the principal energy level n = 3?
    11·2 answers
  • A 75.0 kg ladder that is 3.00 m in length is placed against a wall at an angle theta. The center of gravity of the ladder is at
    9·1 answer
  • Which is a property of the group highlighted in the periodic table?
    5·1 answer
  • Shakina and Juliette set the car's initial velocity to zero and set the acceleration to +1.2 m/s2, then clicked "start." Answer
    10·1 answer
  • Approximately how much electrical energy does a 5-W light bulb convert to radiant or thermal energy in one hour
    15·1 answer
  • Two long, parallel wires carry currents in the same direction. If I1 = 10 A, and I2 = 20 A, and they are d = 1.0 m apart, what i
    9·1 answer
  • A galvanometer can be calibrated to read electric A) current B) Voltage C) either of these D) neither of these
    8·1 answer
  • Star Twinkle but planet do not why​
    8·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!