How does she hold a newspaper while reading without using the lens? why?​

Explain using examples, what is simple harmonic motion and why it is an important area of study in physics.

Asmall metal bar, whose initial temperature was 10° c, is dropped into a large container of boiling water. how long will it take the bar to reach 70° c if it is known that its temperature increases 2° during the first second? (the boiling temperature for water is 100° c. round your answer to one decimal place.) sec how long will it take the bar to reach 98° c? (round your answer to one decimal place.)

What property is a characteristic of a substance that can be observed and does not change the identity of the substance