Un avion descrie un semicerc cu raza de 100 metri, iar delta t=4 s.
a)desenati traicetoria vectorului de pozitie initial si final fata de centrul cercului si vectorul deplasare
b)calculati valoarea vectorului viteza medie
c)presupunand ca si-a mentinut viteza constanta , calculati viteza momentana a avionului

Need asap ‼️ 20 pts which gravitational force field diagram is drawn correctly? (answers in pictures below)

If the radius of curvature of the cornea is 0.75 cm when the eye is focusing on an object 36.0 cm from the cornea vertex and the indexes of refraction are as described before, what is the distance from the cornea vertex to the retina? express your answer to two significant

During the experiment if you could triple the breakaway magnetic force with all other quantities left unchanged, what is the new value for the critical velocity if it was v0 (initial velocity), initially? (b) now if you halved the radius with all other quantities left unchanged, what is the new critical velocity if it was v0 (initial velocity), initially? (c) if during the experiment, critical velocity quadrupled with all other quantities left unchanged, what is the new breakaway force if its magnitude was initially f0,?