The kinetic energy of a ball with a mass of 0.5 kg and a velocity of 10 m/s is how many j

A500g object falls off a cliff and losers 100 j from its gravitational potential energy store. if the gravitational field strength g=9.8n/kg, how high is the cliff?

Why is it important always to use horizontal bars in unit fractions when performing unit conversions?

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