Benda setinggi 3 cm diletakkan pada jarak 10 cm di depan cermin cekung yang berjari-jari
kelengkungan 10 cm. Tentukan:
 Jarak bayangan
 Perbesaran bayangan
 Sifat bayangan

Amoving electron has kinetic energy k1. after a net amount of work w has been done on it, the electron is moving one-quarter as fast in the opposite direction. (a) find w in terms of k1. (b) does your answer depend on the final direction of the electron's motion?

Achild has maximum walking speed of 1.6 m/s. what is the length of the child's legs? 0.26 m

Which radioisotope is used in dating geological formations?