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
Xelga [282]
4 years ago
6

Please hurry!!!!!!!.......

Physics
2 answers:
elixir [45]4 years ago
5 0

Answer:

B

Explanation:

D is nonsense. The current keeps coming through all lights.

A is wrong. The exact opposite happens. More bulbs more resistance.

C is wrong. More resistance less current, not more.

So your answer is B because the voltage drop in each decreases when there are more bulbs.

Elina [12.6K]4 years ago
4 0

The answer is B! Hope this helped

You might be interested in
Do you agree or disagree with the notion that there must be one master equation that describes the entire universe? Explain your
sashaice [31]

Answer:

Explanation:

Well this really depends on you dude; this question asks for your opinion.

But personally I disagree with this because I like to use different ways to find the answer or in this case describe the entire universe. This is because I can use different variables to solve for the unknown.

If you agree, you can say something like I can memorize this equation or something along the lines.

7 0
3 years ago
A copper transmission cable 140 {\rm km} long and 12.5 {\rm cm} in diameter carries a current of 115 {\rm A}.
SpyIntel [72]

Answer:

1. V=22.0407\ V

2. Q=9126837\ J

Explanation:

Given:

length of copper cable, l=140\ km=1.4\times 10^5\ m

diameter of copper cable, d=12.5\ cm=0.125\ m

current through the copper wire, i=115\ A

We have the resistivity of copper, \rho=1.68\times10^{-8}\ \Omega.m

<u>We know that the resistance of a wire is given as:</u>

R=\rho.\frac{l}{a}

where:

a= cross sectional area of the wire

R=1.68\times 10^{-8}\times\frac{140000}{\pi.\frac{0.125^2}{4} }

R=0.1917\ \Omega

1.

<u>Now from the  Ohm's law:</u>

V=R.i

V=0.1917\times 115

V=22.0407\ V

2.

<u>From the Joules law the thermal energy generated as an effect of electrical energy is mathematically given as:</u>

<u />Q=i^2.R.t

where:

t= time duration for which the current flows

Q=115^2\times 0.1917\times 3600 (∵ we have 3600 seconds in 1 hour)

Q=9126837\ J

5 0
3 years ago
What is the relationship between the mass of an object and the amount of force required to drag it across the table?
hammer [34]

Answer:

Force = mass × acceleration

Explanation:

The amount of force required to drag the object across the table is the product of the mass of the object and acceleration

6 0
3 years ago
From the figure, which letter shows the area of compression for the sound created by the tuning fork?
nekit [7.7K]
I don’t know but I am pretty sure b
4 0
3 years ago
How can you remember meiosis 1 and meiosis 2
Marianna [84]

Answer:

Once you know the differences between meiosis 1 and 2, you will remember it easier.

Explanation:

Meiosis 1 starts with 1 diploid cell Meiosis 2 starts with 2 haploid cells,

each with a homologous pair

Meiosis 1 results in 2 daughter cells Meiosis 2 results in 4

7 0
3 years ago
Other questions:
  • A car travels 6 miles north, 3 miles east, and then 2 miles south. What is the distance traveled?
    8·2 answers
  • While driving north at 21 m/s during a rainstorm you notice that the rain makes an angle of 36° with the vertical. while drivin
    6·1 answer
  • A block floats partially submerged in a container of liquid. When the entire container is accelerated upward, which of the follo
    6·1 answer
  • Is the atmosphere good or bad for astronomers trying to use telescopes
    6·1 answer
  • During which stage of sleep does most dreaming occur
    11·1 answer
  • How can a person’s movement away and towards a reference point be analyzed using a position-time graph?
    7·1 answer
  • Krishna and Seldon now try a homework problem. A policeman sitting in his unmarked police car sees an approaching motorcyclist g
    12·1 answer
  • The the weight of an object is the same as the mass of an object
    6·1 answer
  • True or false? One reason gases are easy to compress is because their particles have higher energy.
    10·1 answer
  • A circus truck full of monkeys has a mass of 3175 kg. The kinetic energy of the circus truck is 128,587.5 J. Calculate the speed
    5·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!