Vypočítaj optickú mohutnosť šošovky, ak ohnisková vzdialenosť f = 0,25 m a rozhodni o aký druh šošovky sa jedná?

Question 11 of 13 (1 point) jump to question: a stairway, ladder, or ramp must be present in excavations in which of the following situations? a. all trenches must have access/egress b. the trench is more than 15 feet wide but only 1 ½ feet deep c. the trench is more than 4 feet deep and the devices must be within 25 feet of all workers

Which of the following bonds would be most polar? a. c-i b. c-br c. c-cl d. c-f e. c-o

A20 cm long spring is attached to a wall. the spring stretches to a length of 22 cm when you pull on it with a force of 100 n. what is the spring constant