A second hand on a clock has a radius of 10 cm what is the circumference of a circle around which the secondhand travels

Acrow drops a 0.11kg clam onto a rocky beach from a height of 9.8m. what is the kinetic energy of the clam when it is 5.0m above the ground? what is its speed at that point?

In this thread, i would like you to comment on the nature of light and how operation of telescopes. light has a duality of a particle and a wave; which one affects your life? also how does light interact with optics inside telescopic systems? answer these questions in two paragraphs. then respond the another students response.

Resistivity of a material is the resistance of a cm long sample of the material of 1 cm2 cross-sectional area.