An object with a mass of 120 kilograms is moving at a velocity of 30m/s what’s its momentum

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.)

The plum pudding model of the atom states that ?

Avoltaic cell converts chemical energy to