Answer:
he difference between X-rays and visible radiation is in the energy of each foton.
Explanation:
Visible light and X-rays are electromagnetism waves with the same origin betray the atomic, but the energy of transioin wings is different,
E = h (v_f - v₀)
With this equation we see that the energy is proportional to the difference between the atomic levels where the ranscion occurs, the X-rays the transition involves deep levels n = 1 or 2 for which the energy of the emitted photon is very high.
The visible radiation the transition is between levels closer so that the emitted light has a lower frequency and is in the range of the visibly
Consequently, the difference between X-rays and visible radiation is in the energy of each foton.
A group of students designed the string drip system to water plants without irrigation, as shown in the image. They placed a jug
next to a plant with the jug's mouth above the plant's pot. Then, they placed one end of a piece of cotton string at the bottom of
the jug and inserted the other end into the soil, about 8 cm deep, close to the plant's root. They kept the string out of direct
sunlight. Finally, they added water to the jug. After a few days, the students decided that their drip was too slow.
ago
How might the students modify their design to increase the controlled drip?
O A.
use a wider jug
B. use a longer string
O c. add more water to the jug
O D. add more strings to the design
Answer:
D add more string and water
The space shuttle travels at 15,000 m/s in order to enter
earth atmosphere it changes it's speed to 10,000 m/s over
100 seconds. What is the space shuttles acceleration?
Answer:
10,000 m/s per 100 seconds
The length of a planet's day is determined by it's
Answer: "People will say the length of a day is determined by just the rotation rate of a planet, but that isn’t entirely true. The orbit around its sun also factors in. What we define as a day is the time between when the Sun is highest in the sky until the next time the Sun is at the highest point in the sky. This isn’t just the time it takes the Earth to rotate once on its axis, though. This is because, as the Earth is rotating, it’s also moving relative to the Sun"
What does 'MET' stands for?
Answer:
MET = Metabolic equivalent of task.A helium nucleus is composed of two protons (positively charged) and two neutrons (charge neutral). The distance between the two protons in the nucleus is 5.18E-15 m. What is the electric force between the two protons (in Newtons; use positive sign for repulsive forces and negative sign for attractive forces)
Answer:
Using the given values
F = K q^2 / r^2 = 9 * 10E9 * (1.6 * E-19)^2 / (5.18 * E-15)^2 N
E = 9 * 1.6^2 / 5.18^2 * 10 = 8.5 N
The force between two protons will be 9 N (approx.)
We have two Protons (positively charged) and two Neutrons (charge neutral) inside a Helium atom. The distance between the two Protons in the nucleus is 5.18 x [tex]10^{-15}[/tex] m.
We have to determine the the electric force between the two protons.
State Coulomb's Law of Electrostatic force.The Coulomb's law states that the magnitude of the electrostatic force of attraction or repulsion between two point charges is directly proportional to the product of the magnitudes of charges and inversely proportional to the square of the distance between them. Mathematically -
[tex]$F=\frac{q _{1}\c q _{2}}{4 \pi \varepsilon _{0} r^{2}}[/tex]
According to question, we have -
Number of protons = 2
Distance between them (r) = 5.18 x [tex]10^{-15}[/tex] m.
We know charge on proton (q[1] = q[2]) = 1.6 x [tex]10^{-19}[/tex] C.
Substituting the values in the equation, we get -
[tex]$F = 9\times 10^{9}\; \times \frac{(1.6\times 10^{-19}) ^{2} }{(5.18\times 10^{-15}) ^{2} }[/tex]
Solving, we get -
F = 9 N (approx.)
Hence, the force between two protons will be 9 N (approx.)
To solve more questions on Coulomb's law, visit the link below-
https://brainly.com/question/10933224
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