Calculate 1.6 ∙ 103 times 3.0 ∙ 10-6.

Suppose that 27 j of work is needed to stretch a spring from its natural length of 6 m to a length of 9 m. (a) how much work is needed to stretch the spring from 12 m to 14 m? j (b) how far beyond its natural length will a force of 78 n keep the spring stretched?

Ain is , is 's of ? 0.62 0.79 1.27 1.50

Select all the correct answers. which three statements about electromagnetic radiation are true?