Which of these statements about nonrenewable resources is true? O They are inexpensive.
O They help keep the air clean.
O They can take millions of years to form.
O They are used because they are easily removed from the ground.

Explain in physical terms how a microwave oven works. what would happen when you put a conductor in the microwave oven? explain.

Janelle made a hypothesis bout the uneven temperatures inside her house during winter. she believes that 50% of the ducts are blocked and she plans to investigate. if she wants to prove her hypothesis using scientific processes what should she do next?

Unpolarized light whose intensity is 1.19 w/ is incident on a polarizer. (a) what is the intensity of the light leaving the polarizer? (b) if the analyzer is set at an angle of = 41.0∘ with respect to the polarizer, what is the intensity of the light that reaches the photocell?