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
Ivanshal [37]
3 years ago
13

A series R-L-C circuit is connected to a 70.0 Hz ac source that has Vrms = 80.0 V . The circuit has a resistance of 80.0 Ω and a

n impedance of 102 Ω at this frequency. What average power is delivered to the circuit by the source?
Physics
1 answer:
Andreyy893 years ago
3 0

Answer:

62.7 VA

Explanation:

The apparent power (power supplied by the source) of an AC circuit is determined by

S = \frac{(Vrms)^2}{Z}

The impedance(Z) depends on the frequency, but in this case it is given to us that it is 102 ohms at this frequency.

So:

S = \frac{(80 V)^2}{102 \Omega} = 62.7 VA

You might be interested in
16. Kinematic equations can only be used if...​
Effectus [21]

the acceleration or the next force acting on the body is constant

7 0
3 years ago
A barrel of oil is exactly 42 gal. how many liters of oil are in a barrel
Natali [406]
The conversion from gallons to liters is 1 = 3.785.

Keeping this in mind...

42 x 3.785 = 158.97 liters.

If rounding, there are about 159 liters of oil in a barrel.
6 0
3 years ago
What do scientist do to receive suggestions an criticism of their research from other scientists?
barxatty [35]

They PUBLISH !

They provide complete written, detailed, technical descriptions of their thoughts, hypotheses, experiments, data, and conclusions, in publications that are read by other scientists around the world.

4 0
3 years ago
Read 2 more answers
A student drops a ball from the top of a tall building; it takes 2.9 s for the ball to reach the ground.
AlexFokin [52]

<h2><u>We have</u>,</h2>

  • Initial velocity (u) = 0 m/s
  • Time taken (t) = 2.9s
  • Acceleration due to gravity (g) = + 10 m/s² [Down]

<h2><u>To calculate</u>,</h2>

  • Final velocity (v)
  • Height (h)

<h2><u>Solution</u><u>,</u></h2>

→ v = u + gt

→ v = 0 + 10(2.9)

→ v = 29 m/s \qquad … ( Ans )

And,

→ h = ut + ½gt²

→ h = 0(2.9) + ½ × 10 × (2.9)²

→ h = 5 × 8.41

→ h = 42.05 m \qquad … ( Ans )

4 0
2 years ago
After being accelerated through a potential difference of 5.33 kv, a singly charged carbon ion (12c) moves in a circle of radius
LekaFEV [45]
I'm stuck on the same question, as well :(
4 0
3 years ago
Other questions:
  • How does the sun’s gravitational attraction impact Earth’s motion?
    12·1 answer
  • What is the name of alfred wegener's hypothesis about moving land masses?
    12·2 answers
  • You have two contentious friends, Chris and Pat, and you’ve quickly discovered that they need you to resolve arguments they have
    12·1 answer
  • A mass spectrometer is being used to separate common oxygen-16 from the much rarer oxygen-18, taken from a sample of old glacial
    9·1 answer
  • True or false? Nitrogen in the atmosphere is responsible for clouds and precipitation? If not what is?
    8·1 answer
  • While moving in, a new homeowner is pushing a box across the floor at a constant velocity. The coefficient of kinetic friction b
    7·1 answer
  • Can any one answer these two
    6·1 answer
  • An air conditioner operating at steady state maintains a dwelling at 70oF on a day when the outside temperature is 90oF. If the
    13·1 answer
  • escribe the differences between the terrestrial and jovian planets and classify each of the 8 planets to the proper type
    8·2 answers
  • A 5 kg ball is suspended on one cable. Calculate the tension in the cable.
    9·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!