Review part a an object is 29.0 cm from a screen what are the radi of a symmetric converging plastic lens (ie, two equally ourved surtaces) that will form an image on the screen twice the height of the object? (take the index of refraction of plastic to be 1.59.) express your answer with the appropriate units.

R = 22.81 cm

Explanation:

As we know that distance of object from screen is 29 cm

also we know that

(since its a real image so magnification must be negative)

now we have

now by lens formula

now we know by lens maker's formula

R = 22.81 cm

a long strand of spaghetti is folded once. if this is cut 20 times, how many pieces of spaghetti will there be? a long strand of spaghetti is folded once. if this is cut 20 times, how many pieces of spaghetti will there be? a long strand of spaghetti is folded once. if this is cut 20 times, how many pieces of spaghetti will there be? a long strand of spaghetti is folded once. if this is cut 20 times, how many pieces of spaghetti will there be? a long strand of spaghetti is folded once. if this is cut 20 times, how many pieces of spaghetti will there be?

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c) up is the direction the magnetic force is acting on the charge.