the wires inside a cable each have there own plastic insulation .why does the insulasion have diffrent colours
Answers
A cable is a bundle of two wires or three wires or a thousand wires,
inside a single 'tube'. In order for the cable to be useful, you need to
be able to match each wire at one end of the cable to the same wire
at the other end. If each wire has a different physical appearance,
then it's easy.
Related Questions
Imagine you are in an open field where two loudspeakers are set up and connected to the same amplifier so that they emit sound waves in phase at 688 Hz. Take the speed of sound in air to be 344 m/s. Part A. If you are 3.00 m from speaker A directly to your right and 3.50 m from speaker B directly to your left, will the sound that you hear be louder than the sound you would hear if only one speaker were in use? a. yes b. no Because the path difference is equal to the wavelength of the sound, the sound originating at the two speakers will interfere constructively at your location and you will perceive a louder sound. Part B. What is the shortest distance d you need to walk forward to be at a point where you cannot hear the speakers? The forward direction is defined as being perpendicular to a line joining the two speakers and you start walking from the line that joins the two speakers. Express your answers in meters to three significant figures. d = m
Calculate the velocity of a 1650 kilogram satellite.
Joan makes the device shown in her science class.An illustration with a battery and ends labeled positive and negative. A wire is connected to the positive end of the battery and curls around an iron nail and connects back with the negative side of the battery.What would happen to the magnetic field if she connects the battery in the opposite direction?The field would stop.The field would get stronger.The field would reverse its poles.The field would get weaker.
a tungsten and coil has a resistance of 12 ohm at 15 degree celsius is the temperature coefficient of resistance of tungsten is 0.004 calculate the equal resistance at 80 degree Celsius
Answers
Galaxies are comprised of stars, while the universe is comprised of galaxies.
I hope my answer has come to your help. God bless and have a nice day ahead!
Answer:
Universe contains galaxies, stars and planets.
Explanation:
The Universe is the assumed to be made of three different kind of matters which is
1- Dark matter ( 25 %)
2-Normal matter (5%)
3- Dark energy (70%)
The Universe has billions of galaxies in it, each one of galaxy has planets and millions of stars. It is the collection of everything that exist in the space including clouds of gas and vast empty spaces between planets and stars.
Answers
Answer:
New volume (V2) = 60 liter
Explanation:
Given:
Amount of helium (V1) = 20 Liter
Temperature (T1) = 100°K
Temperature (T2) = 300°K
Find:
New volume (V2)
Computation:
According to Gas Law:
V1 / T1 = V2 / T2
20 / 100°K = V2 / 300°K
V2 = 60 liter
New volume (V2) = 60 liter
B. 22 Hz and 42 Hz
C. 47 Hz and 55 Hz
D. 18 Hz and 26 Hz
Answers
Answer:
B. 22 Hz and 42 Hz
Explanation:
The beat is an interference pattern which occurs when two waves of slightly different frequencies meet each other. The beat is heard as a periodic variation, whose frequency (called beat frequency) is equal to the absolute value of the difference between the frequencies of the individual waves:
In this problem, we are told that 20 beats per second are produced, so the beat frequency is
Therefore, we must find the two waves which have a difference in frequency equal to this value, 20 Hz. Let's see each choice:
A. 38 Hz and 63 Hz --> --> NO
B. 22 Hz and 42 Hz --> --> YES
C. 47 Hz and 55 Hz --> --> NO
D. 18 Hz and 26 Hz --> --> NO
So, the correct choice is
B. 22 Hz and 42 Hz
Answers
Nothing has to turn.
Sunlight IS solar energy !
It is often greater than it was before the collision.
It is always the same as it was before the collision.
It is often the same as it was before the collision.
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Answer:
It is always the same as it was before the collision.
Answer:
The answer is C on Edge
Explanation:
Answers
Answer:
The total mass of the abattoir is 100 grams. When you add 100 ml of water and 50 ml of oil, you need to consider the density of these substances to calculate their mass.
The density of water is approximately 1 gram per milliliter (g/ml). So, 100 ml of water has a mass of 100 grams.
The density of oil can vary depending on the type, but for a rough estimate, we can assume it's around 0.9 grams per milliliter (g/ml). So, 50 ml of oil has a mass of 50 x 0.9 = 45 grams.
Now, you can calculate the total mass:
Total mass = Mass of abattoir + Mass of water + Mass of oil
Total mass = 100 grams + 100 grams + 45 grams
Total mass = 245 grams
The total mass when 100 ml of water and 50 ml of oil are added to the abattoir will be 245 grams.
Explanation: