What is the drawback to using superconductors?
The cost of keeping the semiconductor below the critical temperature is unreasonable.
People do not readily accept new technologies.
o Superconductivity is just a theory at this time.
The technology has not been released to the public sector at this time.
Answers
Answer:
Option A
The cost of keeping the semiconductor below the critical temperature is unreasonable
Explanation:
First of all, we need to understand what superconductors are. Superconductors are special materials that conduct electrical current with almost zero resistance. This means that there is little or no need for a voltage source to be connected to them. As a matter of fact, once a superconductor is connected to a power supply, one can remove the power supply and the current will still flow.
However, most superconducts can only conduct at very low temperatures up to -200 degrees Celcius. This is because, at that temperature, their atoms and molecules are relatively settled, hence they pose little or no resistance to the flow of current.
This as you can guess is extremely difficult to do, as you will need a lot of effort to cool it to that temperature and maintain it.
This makes option a the answer:
The cost of keeping the semiconductor below the critical temperature is unreasonable.
Related Questions
What 2 parts of your foot do you use to dribble a soccer ball
Answers
Answer:
im not 100% sure but i think its the base of your big toe or the arch of your foot
Explanation:
thats how i do it
1. Find potential difference of the energy
source for a current of 7 A to be
carried through a Wire.
Answers
Answer:
182 V
Explanation:
We do:V=I.R
V is energy so
I = 7
R = 7+7+3+3+6
V= 7.26
V=182
can anyone else finish the parts?
Answers
Answer:
2. wavelength
3. Crest
4. Rest
5. Trough
6. Amplitude
Explanation:
Answer please I will mark u as brainlist
Answers
Explanation:
1) velocity = displacement/time
time = displacement/velocity
time = 200/660
= 10/33
= 0.303
2) vf = vi - a*t
0 = 30 - 9.8*t
t = 30 ÷ 9.8
t = 3.06 seconds
The sound from an insect is produced when it vibrates its wings at an average rate of 500 vibrations per second:
(a) What is the time-period of the vibrations ?
(b) What is the frequency of the vibrations in hertz ?
(c) Can we hear this sound? Why or why not?
Answers
= (1/500) = 0.002 sec.
(b) The frequency of the vibrations in hertz is 500 Hz. Because 1Hz = 1 vibration/second. (c) We can hear this because it is in the range of 20Hz to 20,000Hz.Read more on Sarthaks.com - https://www.sarthaks.com/821303/the-sound-from-insect-produced-when-vibrates-wings-average-rate-500-vibrations-per-second
A 120 Ohm resistor is connected in
series with a 180 Ohm resistor, and
attached to a battery. The voltage drop
across the 120 Ohm resistor is 6.00 V.
What is the voltage drop across the
180 Ohm resistor?
(Hint: How much current is flowing?)
(Unit = V)
Answers
Answer:
I=0.05 Amper
v=9 volts
Explanation:
I=V/R1
l=6/120=0.05Amper
voltage of 180ohm =IR2=0.05×180=9volts
V=9 volts
A certain AM radio wave has a frequency of 1.12 x 106 Hz. Given that radio waves travel at 2.99 x 108 m/s, what is the wavelength of this radio wave? (Round your answer to three significant figures.) Answer in "m" units
Answers
Answer:
2.67×10² m
Explanation:
Applying
V = λf............... Equation 1
Where V = Velocity of radio wave, λ = wave length, f = frequency.
make λ the subject of the equation
λ = V/f................ Equation 2
From the question,
Given: V = 2.99×10⁸ m/s, f = 1.12×10⁶ Hz.
Substitute these values into equation 2
λ = (2.99×10⁸)/(1.12×10⁶)
λ = 2.66696×10² m
λ ≈ 2.67×10² m
Answer:
hey Leslie good morning. they deleted you other question lol.
If 3 ocean waves travel past the end of the pier in 9 seconds and the wavelength of the ocean waves are 15 m long, what is the speed of the ocean wave?
Answers
Explanation:
[tex]period = \frac{3}{9} \\ f = \frac{9}{3} = 3 \: hertz \\ v = f \lambda \\ v = 3 \times 15 \\ v = 45 \: ms {}^{ - 1} [/tex]
3&4 or you could just do one I just need help man..
Answers
Answer:
For number 3. The solar nebula was an event where a gaseous cloud that flattened until it became a solar system with stars and planets.
Explanation:
Hope this helps!
17. If two oxygen atoms combine to make a molecule, what type of bond will they form?
A) an ionic bond
B) a hydrogen bond
C) a covalent bond
Datuba
Answers
Answer:
C. A Covalent Bond
Explanation:
two covalent bond form between the two oxygen atoms because oxygen requires two shared electrons to fill its outermost shell
Students in physical education class must _____?
1. Change into their physical education clothes prior to each class.
2. Obey all safety rules of gym.
3. Respect other students and teachers.
4. All of the above.
Answers
.........
If an unknown object has a mass of 150.0 grams and a volume of 50 cm3, what is the object’s density?
Answers
Which nucleus completes the following equation?
Answers
Answer:
Option D. ⁸⁵₃₆Kr
Explanation:
⁸⁵₃₅Br —> ⁰₋₁e + ?
Let ⁿₘZ represent the unknown.
Thus, the equation becomes:
⁸⁵₃₅Br —> ⁰₋₁e + ⁿₘZ
Next, we shall determine n, m and Z as follow:
85 = 0 + n
85 = n
Thus,
n = 85
35 = –1 + m
Collect like terms
35 + 1 = m
36 = m
Thus,
m = 36
ⁿₘZ => ⁸⁵₃₆Z = > ⁸⁵₃₆Kr
Thus, the equation:
⁸⁵₃₅Br —> ⁰₋₁e + ⁿₘZ
Becomes:
⁸⁵₃₅Br —> ⁰₋₁e + ⁸⁵₃₆Kr
a rock of mass of 540 g in the air is found to have an apparent mass of 342 g when submerged in water (a) calculate the weight of the Rock given that the acceleration of the air g 10 m / s² to ignore the air resistance
Answers
Answer: 5.4 N
Explanation:
Given
mass of rock in the air is 540 g
Apparent mass of 342 gm when submerged in water
Weight of the rock is the product of mass and accleration due to gravity
[tex]\Rightarrow W=mg\\\Rightarrow 0.540\times 10=5.4\ N[/tex]
¿Que le ocurre a un folículo después de liberar a un ovulo?
Answers
nesecitabas ayuda hace 1 hora, todavia la nesecitas?
List two things that happen when invisible waves of radiant energy come into contact 'with a solid.
Answers
Answer: they vibrate faster and becomes hotter
Explanation:
.
Ray diagrams may be drawn to determine the characteristics of an image produced from a lens or mirror. When the lens produces light rays that are parallel, the image is
Question 16 options:
between F & 2F on the other side as object
F on the other side as object
non-existent
at infinity
Answers
Answer:
At infinity the image is formed
When a lens produces light rays that are parallel, the image is: C. non-existent.
A ray diagram can be defined as the graphical representation of the possible paths light takes from one point (source) to another.
Hence, a ray diagram is a graphical representation of how light interacts with a boundary, so as to help us view a point on the image of an object.
Basically, the characteristics of an image produced from a lens or mirror can be determined by drawing a ray diagram of the possible paths taken by light.
On a ray diagram, an image produced from a lens is non-existent when the lens produces light rays that are parallel because the refracted rays of light neither diverge nor converge.
In conclusion, an image cannot be formed (non-existent) when a lens produces light rays that are parallel, due to refraction.
Read more: https://brainly.com/question/20376243
Heyyy can someone help me plz
The mass of the hammer is 0.454 kg.
(i) Calculate the weight of the hammer.
Answers
Explanation:
W = mg
= (0.454 kg)(9.8 m/s^2)
= 4.45 N
Hola puntos gratis !!!!!!!!!!!!!!!!!
Answers
Answer:
gracias
Explanation:
Hello.
Brainly points can be used for better situations, brainly points are experience that you receive by answering well.
Compare and contrast reproduction and fertilization.
Answers
Answer:
ew so the difference is.. Pollination and Fertilization occur in plants during sexual reproduction.
the difference is Pollination occurs from anthers of stamens to stigma of the ovary and It is a physical process.
fertilizateion is It is the fusion of female and male gametes and It is a genetic and biochemical process.
Explanation:
this was so hard to write out
What type of energy do not harm our environment?
Answers
Answer:
Explanation: Renewable energy is energy that has been derived from earth's natural resources that are not finite or exhaustible, such as wind and sunlight. Renewable energy is an alternative to the traditional energy that relies on fossil fuels, and it tends to be much less harmful to the environment.
I WILL GIVE BRAINLYIST! To change an efficiency value to a percentage you would ______________
A. Multiply by 100
B. Divide by 100
C. Do nothing
D. Multiply by 10
If a wave has a frequency of 9.25 x 10 ^4, what is its wavelength?
A. 3.24 x 10^3 m
B. 5.5 x 10 ^-3 m
C. 4.2 x 10 ^ 3 m
D. 8.9 x 10 ^ 9 m
Which of the following is not part of the UV spectrum?
A. Gamma rays
B. Ultraviolet rays
C. Microwaves
D. X-rays
Which type of wave can cause blindness or damage to the eyes at high intensities?
A. Ionizing waves
B. Radio waves
C. Visible light
D. Infrared waves
Answers
Answer:
No1 is a
No3 is d
For the rest idont know but I hope this will help
Answer:
If you delete this your a bot.12345
Explanation:
Osmium, is the densest metal found,has density of 22.6 g/cm 3. The mass of the block is 113 g. Find its volume. (1 mark for formula and 1 mark for showing calculation)
Answers
Answer:
Volume = 5 cm³
Explanation:
Given the following data;
Density = 22.6 g/cm³
Mass = 113 grams
To find the volume;
Density can be defined as mass all over the volume of an object.
Simply stated, density is mass per unit volume of an object.
Mathematically, density is given by the equation;
[tex]Density = \frac{mass}{volume}[/tex]
Making volume the subject of formula, we have;
[tex]Volume = \frac{mass}{density}[/tex]
Substituting into the equation, we have:
[tex]Volume = \frac{113}{22.6}[/tex]
Volume = 5 cm³
Do you want robot referees in your favorite class?
Answers
Answer:
Sounds cool.. but what do they do?
Explanation:
The lengths of the Mercury thread in a thermometer at 30。C and 0。C are 6.0cm and 2.5cm respectively.What is the length of the Mercury thread when the thermometer is placed in pure boiling water at a pressure at 1 atmosphere.
Answers
Answer:
C yes susialoas
Explanation:
Yes they c is bkookkkakaksk
a bus with a mass of 3000kg has a force of 15,000 newtons applied to it while traveling down the highway. what is the resulting acceleration on the bus?
Answers
Answer:
5m/s^2
Explanation:
acceleration= force/ mass
a = 15,000/3000
a = 5m/s^2
Answer:
uqvajwvabab
Explanation:
hiusbsvbskws wjq d wbsbb akwbwbs
7. Can the speed of a particle be negative? Can the
velocity of a particle be negative? Give arguments to
support your answers.
Answers
Answer:
Suppose at time t1 = zero and v1 = 50 MPH
time t2 = 10 sec and v2 = 10 MPH
Change in speed = (v2 - v1) / (t2 - t1) = (10 - 50) MPH / (10 - 0) sec
Change in speed = -40 MPH / 10 sec = - 4 MPH / sec
If you specify the velocity as always East then
change in velocity = - 4 MPH East
Had the particle finished by moving in the Westerly direction then
Change in velocity = (-10 - 50) MPH / 10 sec = -60 / 10 MPH = -60 MPH East
Where West was the positive direction
Initially v1 was 50 East and v2 was -10 East with a difference of 60 MPH
If a person applies the same amount of force to an object what would
accelerate faster? *
1. A rock
2. A basketball
3. Bouncy ball
4. House
Answers
Answer:
A rock because
Explanation:
Answer: HERE IS THE ANSWER SIR
Explanation: SO I BELIEVE IT WOULD BE A BASKETBALL THINK ABOUT WHEN YOU TRY TO PUSH A TABLE THATS PUTTING EXTRA FORCE BUT IF YOU WERE TO DO THAT TO A BASKETBALL IT WOULD ACCELERATE MUCH RAPIDLY THEN ALL THE OTHER OBJECTS I CONSTANTLY DO THE PROCESS OF ELIMNATION WITH ALL THE CHOICE AND I FIGURED OUT IT WAS A BASKETBALL. I HOPE THIS HELPED HAVE A NICE DAYY!!
When your hand blocks your view of the lamp, where does the shadow of your
hand fall?
Answers
Answer:
in front of you
Explanation:
Your hand blocks the light of lamp , causing a shadow to form in front of you
how many joules of energy is needed to move a 3 n rock 6 m
Answers
The amount of joules needed is 18
Explanation:
force×distance