If it takes Venus 0.7 years to orbit the Sun. How long (in years) will it take Venus to come back to its original place in our night sky?

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

Which bonds are found inside a water molecule

How many astronauts have walked on the moon?