A 12.4 kg log is being dragged along flat ground by a 99 N force at an angle of 45 degrees. . If the log accelerates at a rate of 0.81 m/s2, what is the normal force acting on the log?

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?

How much energy must a refrigerator absorb from 225 g of water so that the temperature of the water will drop from 35°c to 5°c

The movement of electrons between atoms is called an