What is the suprising thing that happens in a superconductor
Answers
it has NO electrical resistance. The resistance doesn't just become
very very very small. It becomes literally completely zero. (This is
a big part of the reason why it's called a "super-conductor".)
If you start an electric current flowing in a superconductor, you can
connect the ends of it together, and the current keeps going around
and around the loop and never dies out !
Related Questions
On, Inc., publishing as pe6. Circle the letter before each element that is a gas at room temperature.a. carbonc. mercuryd. nitrogenb. oxygen
A clever engineer designs a "sprong" that obeys the force law fx =−q(x−xe)3, where xe is the equilibrium position of the end of the sprong and q is the sprong constant. for simplicity, we'll let xe =0m. then fx =−qx3.
Which of the following occurs on March 21?a. summer solstice b. winter solstice c. vernal equinox d. autumnal equinox
Range of motion is the distance an object can travel when separated from another object.a. Trueb. False
b. Copernicus
c. Newton
d. Ptolemy
Answers
Answer;
C. Newton
Explanation;
- According to Kepler, the orbital speed of a planet varies, depending on its distance from the Sun. The closer a planet is to the Sun, the stronger the Sun’s gravitational pull on it, and the faster the planet moves. The farther it is from the Sun, the weaker the Sun’s gravitational pull, and the slower it moves in its orbit.
- While thinking on Kepler's laws, Newton realized that all motion, whether it was the orbit of the Moon around the Earth or an apple falling from a tree, followed the same basic principles.
Answers
window of a building. If the initial speed of the
object is 20 m/s and it hits the ground 2.0 s later,
from what height was it thrown? (Neglect air
resistance and assume the ground is level.)
Initial vertical velocity = 0
formula: s = ut + (1/2)*g*t^2
s = 0 + 1/2*9.8*2^2
s = 9.8*2 = 19.6 m
third
fourth
fifth
sixth
Answers
Answer: The earth is the fifth largest planet in the solar system.
Explanation:
We know that,
Jupiter is the first largest planet, Saturn is the second largest planet, Uranus is the third largest planet, Neptune is the fourth largest planet, Earth is the fifth largest planet and Venus is the sixth largest planet in the solar system.
Hence, The earth is the fifth largest planet in the solar system.
False
Answers
Answer:
This expression is True
Since the Ohm's Law "states that the current )I) through a material between two points is proportional to the voltage across the two points." and i defined by this formula:
Where V represent the voltage and it's a value related to the emf and the potential
I represent the current
R represent the resistance.
And for this case we have an expression for this case relating the emf , potential, current and resistance
Explanation:
This expression is True
Since the Ohm's Law "states that the current )I) through a material between two points is proportional to the voltage across the two points." and i defined by this formula:
Where V represent the voltage and it's a value related to the emf and the potential
I represent the current
R represent the resistance.
And for this case we have an expression for this case relating the emf , potential, current and resistance
V = IR The relationship between electrical resistance, current, and voltage is defined by the mathematical relationship V= IR and is referred to as Ohm's law. In this equation "V" stands for voltage, measured in volts, "I" stands for current, measured in amperes, and "R" stands for resistance, measured in Ohms (Ω ).Common sources of voltage in circuits may be chemical cells (a battery is a combinations of cells) and generators. Sources of electrical resistance in circuits may include resistors, light bulb filaments, wire conductors and other electric devices. When solving Ohm's law problems you are expected to solve for any unknown variable.
Example: Determine the voltage of the circuit shown below in diagram "A".Diagram A In this circuit we are given the current from the ammeter .2A. We also can determine the resistance. Since this is a series circuit the total resistance is the sum of the resistances of L1 and L2, 70Ω . We set the problem up and solve it like this.
V=IR
V=.2A 70Ω
V= 14VThe answer is 14V
b. sound waves.
c. gamma rays.
d. radio waves.
Answers
Sound waves are longitudinal waves. All are the examples of Electromagnetic waves except the sound wave.
EM Waves:
EM waves are transverse waves means the propagation of the wave is the perpendicular the the wave oscillation.
Sound waves:
These are the longitudinal waves because the propagation of the wave is parallel to the vibration of particles.
- It needs medium like air and water.
- Its speed is very lesser than speed of EM wave.
Therefore, all are the examples of Electromagnetic waves except the sound wave.
To know more about sound wave,
Sound waves need to travel through a medium such as a solid, liquid, or gas. The sound waves move through each of these mediums by vibrating the molecules in the matter. This means it isn't an electromagnetic waves but it is a wave, an example of the difference, all electromagnetic waves can travel in a vacuum at the universal speed limit, this is 299 792 458 m/s.
Answers
Answer:
True
Explanation:
Radiative forcing is indeed the measure of the change in thermal energy units (watts per square meter) at the Earth's surface or in the atmosphere caused by a particular factor, such as an increase in greenhouse gases or aerosols. It quantifies the impact of various factors on the Earth's energy balance and is an important concept in climate science for understanding the drivers of climate change.