Physical The distance between a widening of the forest and a lens is 10 cm. If the lens power is 12.5 D. What type of image do you get? Can you solve it analytically and graphically?. Will the little d'anolyze see his image? Explain to me why the answer.

Now, a beam of light strikes at an angle of 30 degrees from the air on an acrylic plate floating over alcohol. If the refractive rate of alcohol is 1.36 and the acrylic refractive rate is 1.49, trace the ray march and calculate the angle at which the ray enters the alcohol, if it enters​

Answer: a charge of -1.0  × 10⁻⁴ c must be placed  at x = 26 m.the sign of the charge will be the same sign as the  -4.0  µc charge.======electricstatic force between two point charges  is given by    where k is coulomb's constant,  8.99×10⁹  n·m²/c², q₁ and q₂ are the point charges, and r is the distance between the two point charges.assign positive to q₁let q₁ =  6.0 µc, q₂ = -4.0  µc, q₀ represent the charge at the origin, and q₃ represent this new charge to place.the charge at the origin q₀ would experience the following force f₀₁ from q₁, with r = 6.0 m (note that 1  µc = 10⁻⁶ c)    the force from q₂    the force from q₃    the net force on the origin charge, q₀, has to be zero for no electrostatic forcehaving an equation where k and q₀ can be divided out of the equation will allow us to solve for q₃    isolating:     a charge of -1.0  × 10⁻⁴ c must be placed  at x = 26 m.the sign of the charge will be the same as the  -4.0  µc charge

The answer is d, you can easily test a theory! hope i you : )

When the warmer parts go up and the colder parts go down in a circular motion.