Two spherical objects have masses 447 kg and 285 kg. Their centers are separated by a distance of 27 m. Find the gravitational attraction between them.

Why don't you see your reflection in water with waves or repples

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?

Which of the following are guidelines to follow for obtaining accurate observations