<h3>Concave or diverging lens is needed correct the vision of a nearsighted person whose far point is 30.0 cm</h3>
<em><u>Solution:</u></em>
Nearsighted person will not be able to see the distant objects clearly
Now, we want the near sighted person to see the distant objects clearly
<em><u>The lens equation is given as:</u></em>
For distant vision, 
The image of 30 cm from eye will be 28.5 cm to left of spectacle lens
Therefore,
From lens equation,
The negative power -3.51 D denotes that a concave or diverging lens is needed
Answer:
Distance traveled in 1 liter = 40 km
Explanation:
Distance traveled = Energy / Opposing force = 40 x 10^6 J / 1000 N = 40000 m or 40 km
So, the car will moves to a distance of 40 km per liter under the opposing force of 1000 N…
The magnetic force experienced by the proton is given by
where q is the proton charge, v its velocity, B the magnitude of the magnetic field and
the angle between the direction of v and B. Since the proton moves perpendicularly to the magnetic field, this angle is 90 degrees, so
and we can ignore it in the formula.
For Netwon's second law, the force is also equal to the proton mass times its acceleration:
So we have
from which we can find the magnitude of the field:
The correct answer is "None of the above; all of these statements are valid." All the statements namely, it depends on the particle's charge, it depends on the strength of the external magnetic field, it depends on the particle's velocity, and it acts at right angles to the direction of the particle's motion are all valid. Thank you for posting your question. I hope this answer helped you. Let me know if you need more help.
Answer:
I think the awnser is B (but don't qoute me on that) if its right then yay but if its wrong im sorry
Explanation:
