A 40-kg child makes 10 revolutions around the Cliffhanger, an amusement park ride in 29.3 seconds. The radius of the barrel is 2.90 meters. Determine the Centripetal Force?

Which of the following are considered noble gases? a. bromine b. neon c. argon d. chlorine

Which atomic model was proposed as a result of j. j. thomson’s work?

In a simplified model of the human eye, the aqueous and vitreous humors and the lens all have a refractive index of 1.40, and all the refraction occurs at the cornea, whose vertex is 2.60 cm from the retina. what should be the radius of curvature of the cornea such that the image of an object 40.0 cm from the cornea’s vertex is focused on the retina?