A 1000 kg car collides with a 1 mg mosquito. by what factor will the acceleration of the mosquito be greater than the acceleration of the car when they collide?

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 is the main energy source for the sun? a. fission of hydrogen b. fusion of hydrogen c. fusion of helium d. fission of iron

What is the force that opposes motion and works against the downward pull? a) friction b) gravity c) weight d) acceleration