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
yaroslaw [1]
2 years ago
6

The potential difference across the terminals of a battery is 8. 4v when there is a current of 1. 50 a in the ba

Physics
1 answer:
Vikentia [17]2 years ago
7 0

Answer:

The potential difference across the terminals of a battery is 8. 4v when there is a current of 1. 50 a in the ba

Explanation:

The potential difference across the terminals of a battery is `8.4 V` when there is a current of `1.50 A` in the battery from the negative to the positive terminal. When the current is `3.50 Air`, the reverse direction, the potential difference becomes `9.4 V`. <br>(a) What is the internal resistance of the battery? <br>(b) What is the emf of the battery?

You might be interested in
Which of the following is an example of a Cnidarian?
siniylev [52]
The answer to this is C jellyfish i am positive 

hope this helps
5 0
3 years ago
Read 2 more answers
How is the speed of an object related to the amount of<br> kinetic energy the object has?
xenn [34]

Answer:

directly proportional to the square of its speed.

Explanation:

;)

3 0
2 years ago
When two resistors are wired in series with a 12 V battery, the current through the battery is 0.33 A. When they are wired in pa
Tcecarenko [31]

Answer:

If R₂=25.78 ohm, then R₁=10.58 ohm

If R₂=10.57 then R₁=25.79 ohm

Explanation:

R₁ = Resistance of first resistor

R₂ = Resistance of second resistor

V = Voltage of battery = 12 V

I = Current = 0.33 A (series)

I = Current = 1.6 A (parallel)

In series

\text{Equivalent resistance}=R_{eq}=R_1+R_2\\\text {From Ohm's law}\\V=IR_{eq}\\\Rightarrow R_{eq}=\frac{12}{0.33}\\\Rightarrow R_1+R_2=36.36\\ Also\ R_1=36.36-R_2

In parallel

\text{Equivalent resistance}=\frac{1}{R_{eq}}=\frac{1}{R_1}+\frac{1}{R_2}\\\Rightarrow {R_{eq}=\frac{R_1R_2}{R_1+R_2}

\text {From Ohm's law}\\V=IR_{eq}\\\Rightarrow R_{eq}=\frac{12}{1.6}\\\Rightarrow \frac{R_1R_2}{R_1+R_2}=7.5\\\Rightarrow \frac{R_1R_2}{36.36}=7.5\\\Rightarrow R_1R_2=272.72\\\Rightarrow(36.36-R_2)R_2=272.72\\\Rightarrow R_2^2-36.36R_2+272.72=0

Solving the above quadratic equation

\Rightarrow R_2=\frac{36.36\pm \sqrt{36.36^2-4\times 272.72}}{2}

\Rightarrow R_2=25.78\ or\ 10.57\\ If\ R_2=25.78\ then\ R_1=36.36-25.78=10.58\ \Omega\\ If\ R_2=10.57\ then\ R_1=36.36-10.57=25.79\Omega

∴ If R₂=25.78 ohm, then R₁=10.58 ohm

If R₂=10.57 then R₁=25.79 ohm

3 0
3 years ago
The blank is the the distance between two crests or two troughs on a transverse wave. It is also the distance between compressio
den301095 [7]
"Wavelength" is the distance between two crests or two Troughs.

It is the <span>distance between compressions or the distance between rarefactions on a longitudinal wave too!

So, your final answer is "Wavelength".

Hope this helps!!</span>
6 0
2 years ago
Read 2 more answers
Contrast radiation with conduction<br> ( keep it short and simple , make one sentence . )
TEA [102]

Answer:

In radiation, heat transfer occurs through electromagnetic waves without involving particles. In conduction, heat transfer takes place between objects by direct contact.

7 0
2 years ago
Read 2 more answers
Other questions:
  • calculate the density of a neutron star with a radius 1.05 x10^4 m, assuming the mass is distributed uniformly. Treat the neutro
    9·1 answer
  • When flying in an airplane, you are most likely in which layer of the atmosphere? mesosphere thermosphere stratosphere trosphere
    13·2 answers
  • A dog pushes a toy horizontally on a frictionless floor with a net force of 2.0\, \text N2.0N for 1.0\,\text m1.0m. How much kin
    7·2 answers
  • How long will it take an object to hit the ground if dropped from 100 meters
    11·2 answers
  • The answers to these please
    11·1 answer
  • Digital bits on a 12.0-cm diameter audio CD are encoded along an outward spiraling path that starts at radius R1=2.5cm and finis
    15·1 answer
  • The refractive index of glass is 1.52
    13·1 answer
  • How is an image from a CT scan made from 2D X-ray images?
    5·2 answers
  • An 6 kg object accelerating from 17 m/s to 10 m/s. What is the change in momentum of the object?
    13·1 answer
  • I need help do in a hour
    6·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!