Electric field strength = Force/Charge
E = (3.6*10^-15)/(1.6*10^-19) = 2.25*10^4 N/c
1.6*10^-19 being the elementary charge that is a fundamental constant, and is the charge on an electron.
Answer:
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Explanation:
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Answer:
The angle of incidence is 38.8°.
Explanation:
let n1 = 1.5 be the refractive index of glass and ∅1 be the angle of incidence, let n2 be the refractive index of air and ∅2 be the angle of refraction.
by Snell's law:
n1×sin(∅1) = n2×sin(∅2)
sin(∅1) = n2×sin(∅2)/n1
= (1)×sin(70)/1.5
∅1 = 38.8°
Therefore, the angle of incidence is 38.8°.
Based on discoveries to date, the conclusion as “Planetary systems are common and planets similar in size to Earth are also common” is justified.
Answer: Option C
<u>Explanation:
</u>
Some studies show that on average, each star has at least single planet. This means that most stars, such as the Solar System, possess planets (otherwise exoplanets). It is known that small planets (more or less Earthly or slightly larger) are more common than giant planets. The mediocrity principles state that planet like Earth should be universal in the universe, while the rare earth hypothesis says they are extremely rare.
Size is often considered an important factor, because planets the size of the Earth are probably more terrestrial and can hold the earth's atmosphere. The planetary system is a series of gravitational celestial objects orbiting a star or galaxy. Generally, planetary systems describe systems with one or more planets, although such systems may also consist of bodies such as dwarf planets, asteroids and the like.
Conservation of momentum<span> is a fundamental law of physics. This law states that the </span>momentum<span> of a system is constant if there are </span>no external forces acting on the system. In a situation in which two balls, each with a mass of 0.5 kg, collide on a pool table<span> the law of conservation of momentum is not satisfied because there are external forces that moved the balls. </span>
