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
pychu [463]
2 years ago
14

Two identical resistors connected in series have an equivalent resistance of 4 ohms. The same two resistors, when connected in p

arallel, have an equivalent resistance of:
Physics
1 answer:
irina1246 [14]2 years ago
4 0

Answer:

1 ohm

Explanation:

since there are two identical resistors, one resistor will be

R = \frac{4}{2} =2ohm [ proven as in series R_{e} = 2 + 2 = 4ohm ]

to calculate the equivalent resistance when in parallel:

\frac{1}{R_{e} }  = \frac{1}{R_{1} } + \frac{1}{R_{2}}

so,

\frac{1}{R_{e} } = \frac{1}{2} + \frac{1}{2}

R_{e} = 1ohm

You might be interested in
Which wave shows the loudest sound below?​
pochemuha

Answer:

I think C

Explanation:

If im right give brainliest :)

8 0
3 years ago
Read 2 more answers
A block of mass = 4.00 kg is supported by a spring scale with unit of measure of Newtons. This spring scale is attached to top o
faust18 [17]

Answer:

118 N

Explanation:

Given mass of the block, m = 4.00kg.

The acceleration of the elevator, a = 3.0 m/s^2.

As elevotar attaced with spring scale and accelerating upward

(block and elevator), so total force

F_N-mg=ma

Here, mg is the weight of the block downward direction.

or

F_N=ma+mg=m(g+a)

substitute the given value, we get

F_N=4kg(9.8m/s^2+3m/s^2)

     = 117.6 N = 118 N.

Thus, the reading on the spring scale to 3 significant figures is 118 N.

5 0
3 years ago
Which measurement tool is used to find the volume of a small piece of granite? Select one: a. thermometer b. metric ruler c. gra
Natalka [10]

Answer:

Explanation:

c. graduated cylinder

3 0
3 years ago
When calculating the power bill, power companies use _____.
Dovator [93]
I think the correct answer from the choices listed above is option B. When calculating the power bill, power companies use kilowatt-hours. This unit is a derived unit of energy equal to 3.6 MJ. If energy is being transmitted or used at a constant rate (power) over a period of time, the total energy in kilowatt-hours is the product of the power in kilowatts and the time.
5 0
3 years ago
Why would an egg break immediately when it hits the ground?
Elza [17]

As an egg falls towards the floor, it begins to travel faster and faster. When it slams into the floor, the egg is stopped almost immediately. This force of the floor against the eggshell is too large, so it breaks.
6 0
3 years ago
Read 2 more answers
Other questions:
  • A strip of copper metal is riveted to a strip of aluminum. the two metals are then heated. the coefficient of linear expansion o
    12·1 answer
  • The rotational inertia of a collapsing spinning star changes to 2/5 its initial value. what is the ratio of the new rotational k
    12·1 answer
  • Can someone help because I am very confused
    12·1 answer
  • What are four things that are cycled in the environment?
    7·2 answers
  • HELP PLEASE! 98 POINTS FOR ANSWER
    6·1 answer
  • A 40 g block of ice is cooled to -69°C and is then added to 590 g of water in an 80 g copper calorimeter at a temperature of 22°
    14·1 answer
  • Rahul is carrying a load of 80 kg a distance of 200m in 5 minutes but the same lord is carried by Reena to the same distance in
    9·1 answer
  • The quantum theory of radiation reflects:
    8·1 answer
  • A 300 g wooden block on a smooth, level surface is firmly attached to a very light horizontal spring with a spring constant of 2
    5·1 answer
  • In part a, (a) why did you set the frequency of the square wave to 0.40 hz? (b) what would have happened if you had set the freq
    10·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!