An object with a mass of 9 kg weighs 33.3 N on Mars. What is the acceleration due to Mars's gravity?
O A. 1.6 m/s2
B. 8.9 m/s2
C. 9.8 m/s2
O D. 3.7 m/s2

Around faucet handle is part of a(n) a. lever b. screw c. inclined plane d. wheel and axle

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?

An electron is trapped at a defect in a crystal. the defect may be modeled as a one-dimensional, rigid-walled box of width 1.00 nm. (a) sketch the wavefunctions and probability densities for the n 1 and n 2 states. (b) for the n 1 state, nd the probability of nding the electron between x1 0.15 nm and x2 0.35 nm, where x 0 is the left side of the box. (c) repeat (b) for the n 2 state. (d) calculate the energies in electron volts of the n 1 and n 2 states