. Apply the appropriate rule for significant figures to calculate the following: (a) 1.58 x 0.03, (b) 1.4 + 2.53, (c) 2.34 x 102 + 4.93 (Answer (a) 0.05, (b) 3.9, (c) 2.39 x 102)​

Rohit is trying to tune an instrument

If the radius of curvature of the cornea is 0.75 cm when the eye is focusing on an object 36.0 cm from the cornea vertex and the indexes of refraction are as described before, what is the distance from the cornea vertex to the retina? express your answer to two significant

On your wedding day your lover gives you a gold ring of mass 3.67 g. 48 years later its mass is 3.44 g. on the average how many atoms were abrated from the ring during each second of your marriage? the atomic mass of gold is 197 u. don't enter units