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
Nataly_w [17]
4 years ago
14

A linear network has a current input 7.5 cos(10t + 30°) A and a voltage output 120 cos(10t + 75°) V. Determine the associated im

pedance.
Physics
1 answer:
Leona [35]4 years ago
8 0

Answer:

16∠45° Ω

Explanation:

Applying,

Z = V/I................... Equation 1

Where Z = Impedance, V = Voltage output, I = current input.

Given: V = 120cos(10t+75°), = 120∠75°,  I = 7.5cos(10t+30) = 7.5∠30°

Substitute these values into equation 1

Z = 120cos(10t+75°)/7.5cos(10t+30)

Z = 120∠75°/ 7.5∠30°

Z = 16∠(75°-30)

Z = 16∠45° Ω

Hence the impedance of the linear network is 16∠45° Ω

You might be interested in
The demand equation for the Roland portable hairdryer is given as follows where x (measured in units of a hundred) is the quanti
lesya [120]

Answer:

Explanation:

The concept of elastic and inelastic demand is applied.

for an elastic demand, the elasticity must be greater than 1 and for an Inelastic demand, the elasticity must be less than 1.

The steps and appropriate calculation is as shown in the attached file.

6 0
4 years ago
Electric current is the flow of charged particles called blank .
uysha [10]

The electric current is measured in coulombs per second.<u> A flow of one coulomb per second is called one ampere</u>

7 0
3 years ago
Read 2 more answers
Earth's gravity accelerates objects at 9.8 m/s2. When the flying object reaches the top of its arc (even if it is not pictured),
otez555 [7]
The motion of falling objects is the simplest and most common example of motion with changing velocity. The early pioneers of physics had a correct intuition that the way things drop was a message directly from Nature herself about how the universe worked. Other examples seem less likely to have deep significance. A walking person who speeds up is making a conscious choice. If one stretch of a river flows more rapidly than another, it may be only because the channel is narrower there, which is just an accident of the local geography. But there is something impressively consistent, universal, and inexorable about the way things fall.
3 0
3 years ago
Read 2 more answers
What are some of the physical benefits of playing basketball
Naya [18.7K]

Answer:

Promotes Cardiovascular Health. ...

Burns Calories. ...

Builds Bone Strength. ...

Boosts The Immune System. ...

Provides Strength Training. ...

Boosts Mental Development. ...

Develops Better Coordination And Motor Skills. ...

Develops Self-Discipline And Concentration.

Explanation:

8 0
3 years ago
Read 2 more answers
A 1.50-m cylindrical rod of diameter 0.500 cm is connected to a power supply that maintains a constant potential difference of 1
nydimaria [60]

Answer:

a) 1.06*10^-5

b) 0.00105 °C^-1

Explanation:

Given that

Length of the cylinder, L = 1.5 m

Radius of the cylinder, r = 0.25 cm

Voltage across the rod, V = 15 V

I• at Temperature T• = 20° C is 18.5 A

I at Temperature T = 90° C is 17.2 A

See attachment for calculations

5 0
3 years ago
Other questions:
  • Copper has a specific heat of 0.386 J/g°C. How much heat is required to increase 5.00 g of copper from 0.0°C to 10.0°C?
    10·1 answer
  • Which set of terms best decribes what affect kinetic energy and potential energy respectively
    10·1 answer
  • What was perphaps the greatest challenge of human space flight?
    12·2 answers
  • An electron initially 3.00 m from a nonconducting infinite sheet of uniformly distributed charge is fired toward the sheet. The
    6·1 answer
  • Need help with number 6 and 7 please
    11·1 answer
  • Pedro está realizando sus tareas de Física. Durante un descanso observa la goma de borrar y el lápiz sobre la mesa, y se pregunt
    5·1 answer
  • Estimate the theoretical fracture strength of a brittle material if it is known that fracture occurs by the propagation of an el
    12·1 answer
  • What is the minimum value an eccentricity can be?
    14·2 answers
  • A person eats an 440.08 J snack before working out. If a person uses all of their
    15·1 answer
  • A wire 25.0cm long lies along the z-axis and carries a current of 9.00A in the positive +z-direction. The magnetic field is unif
    10·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!