A 1 kg block on a spring is stretched out 0.5 meters. What will its speed be when it reaches its equilibrium point? The spring constant is 100N/m. The Bellagio is about 150 meters tall. A person drops a penny off the roof. The penny is 1 kg. How fast will it be going when it hits the ground?

equal to 1
Explanation:
When any ray of light falls or strikes on a surface, the ray is reflected back and the angle of reflection is equal to angle of the incidence, where both the angles are always measured from the path of light that is normal to surface of the point at which the ray of light strikes the surface. This is called as the laws of reflection of light.
And therefore, the ratio of the angle of incidence to the angle of reflection is always equal to 1.