In its handling. 3. A crane driver has a chart in his cab which tells him how far he can safely extend the jib of his crane:

Size of load (kg)-10, 20, 30, 40

Maximum length of jib (m)- 12,6,4,3

Moment-?

a. Copy and complete the table

b) b. What do you notice? Why is this?

c) . What length of jib could he have with a load of 24 kg?

Note:I am finding the moment of all of them :)
Please i am begging you, i need the answer ASAP.

Which of the following is part of the explanation or description of electromagnetic waves? (select all that apply) a. electrically charged molecules in a medium transfer their energy to nearby electrically charged molecules. b. a changing electric field causes a changing magnetic field. c. magnetic molecules in a medium transfer their energy to nearby magnetic molecules. d. a changing magnetic field causes a changing electric field.