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
oee [108]
3 years ago
14

In a two-source circuit, one source acting alone produces 10 ma through a given branch. the other source acting alone produces 8

ma in the opposite direction through the same branch. the actual current through the branch is

Physics
1 answer:
pashok25 [27]3 years ago
6 0
Refer to the figure below.
R = resistance.

Case 1:
The voltage source is V₁ and the current is 10 mA. Therefore
V₁ = (10 mA)R

Case 2:
The voltage source is V₂ and the current is 8 mA. Therefore
V₂ = (8 mA)R

Case 3:
The voltage across the resistance is V₁ - V₂. Therefore the current I is given by
V₁ - V₂ = IR
10R - 8R = (I mA)R
2 = I
The current is 2 mA.

Answer: 2 mA

You might be interested in
What is correlation of productivity and positive attitude
Ivahew [28]

For example, when you are at work. If you love what you are doing, you will feel happy, contented and your mind will be at ease. It can give you a positive attitude towards your work no matter how difficult or easy it may be. After persevering your positivity, you will still continue and do what you really love by being productive.

3 0
3 years ago
Read 2 more answers
A helicopter is ascending vertically with a speed of 5.10m/s. At a height of 105 m above the Earth, a package is dropped from a
Oksi-84 [34.3K]

Answer:

The time taken for the package to reach the ground is 20.6s

Explanation:

Given that the formula of distance is D = S×T where S represents soeed and T is time. So you have to substitute the following values into the formula :

distance = speed \times time

let \: distance = 105 \\ let \: speed = 5.10

105 = 5.1 \times t

5.1t = 105

t = 105 \div 5.1

t = 20.6 \: second \: (3s.f)

7 0
3 years ago
0.001225 kg/L x 720 000 000L =?
I am Lyosha [343]

Answer:

0.001225 kg/L × 720 000 000 L = 882000 kg

Explanation:

Given:

The equation to solve is given as:

0.001225 kg/L × 720 000 000 L = ?

Let us write each term of the product in terms of power of 10.

As 0.001225 has 6 digits after the decimal place, therefore, we use the exponent 6 for 10 and the sign is negative. This gives,

0.001225\ kg/L = 1225\times 10^{-6}\ kg/L

Now, for 720000000 L there are 6 zeros after 720. So, we use exponent 6 but with a positive sign. This gives,

720000000\ L=720\times 10^{6}\ L

Now, finding the product, we get:

0.001225\ kg/L\times 720000000\ L\\\\=1225\times 10^{-6}\ kg/L\times 720\times 10^6\ L\\\\=(1225\times 720)\times (10^6\times 10^{-6})\ (\frac{kg}{L}\times L)\\\\=882000\times 10^{6-6}\ kg\\\\=882000\times 10^0\ kg\\\\=882000\times 1\ kg\\\\=882000\ kg

Therefore, the product is equal to:

0.001225 kg/L × 720 000 000 L = 882000 kg

6 0
4 years ago
How are gamma rays and microwaves similar
kompoz [17]

They are both electromagnetic waves

Explanation:

Electromagnetic waves are waves consisting of periodic oscillations of electric and magnetic fields. The fields oscillate in a plane perpendicular to the direction of motion the wave, so they are transverse waves.

Electromagnetic waves are the only type of waves able to travel in a vacuum. All electromagnetic waves travel in a vacuum at the same speed, known as the speed of light, equal to:

c=3.0\cdot 10^8 m/s

Electromagnetic waves are divided into 7 different types, depending on their wavelength and frequency. From the shortest to the longest wavelength (and so, from highest to lowest frequency, since frequency is inversely proportional to wavelength), we have:

Gamma rays

X rays

Ultraviolet

Visible light

Infrared radiation

Microwaves

Radio waves

So as we can see, both gamma rays and microwaves are types of electromagnetic waves. The difference between them is their different wavelength/frequency: in fact, the wavelength of gamma rays is extremently short (), while microwaves have longer wavelengths (at the order of the centimeter).

Learn more about electromagnetic waves:

brainly.com/question/9184100

brainly.com/question/12450147

#LearnwithBrainly

7 0
4 years ago
What is the value of work done on an object when a 50-newton force moves it 15 meters in the same direction as the force?
Volgvan

Answer:

W = 750 Joules.

Explanation:

Given that,

Force acting on the object, F = 50 N

Distance moved by the object, d = 15 m

To find,

Work done by the object

Solution,

Let W is the work done by the object. It is given by the product of force and distance. Its expression is given by :

W=F\times d\ cos\theta

Here, \theta=0 (force and distance are in same direction)

W=F\times d

W=50\ N\times 15\ m

W = 750 Joules

So, the work done by the force is 750 Joules.

4 0
3 years ago
Other questions:
  • What happens when light rays incident on a convex mirror run parallel to its principal axis?
    14·2 answers
  • Which event occurs when Earth is in a position between the moon and the sun so that Earth's shadow falls on the moon?
    5·1 answer
  • How is thermal energy added to a material?
    14·1 answer
  • What is mean by the net displacement in transverse wave
    10·1 answer
  • Please answer quickly and correctly. if you do i will mark you brainliest
    14·1 answer
  • What is the kinetic energy of an object that has a mass of 30 kilograms and moves with a velocity of 20 m/s?
    11·1 answer
  • What is the dimention of kinetic energy
    10·1 answer
  • What does it mean when the mark on the ramrod disappears into the barrel of the muzzleloader?
    10·1 answer
  • What is required to make a resting object move or a moving object change speed or direction?
    11·2 answers
  • An atom has a mass of 24 and a nuclear charge of 12. Which statement about the atom is accurate?
    11·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!