how many kilojoules of energy are necessary to raise the temperature of 3 kilograms of cast iron from 30 degrees Celsius to 120 degrees Celsius?

Is sweeping the floor Work, No work or power?

As a new mechanical engineer for Engines Inc., you have been assigned to design brass pistons to slide inside steel cylinders. The engines in which these pistons will be used will operate between 20.0 ∘C and 150.0 ∘C.

Difference between modern and mendeleev's periodic table

Which of the following is not true of alloys? a. Alloys are made of two or more metals combined physically. b. The mixture of metals in an alloy is based upon the desired use. c. Alloys can be substitutional or interstitial. d.

A sample has a mass of 35.4g and a volume of 36.82mL. What is the density of the sample

What does berkelium react with

Classifying living things

Find the parent acid and parent base of al2 (co33, determine if they are strong or weak, and determine if the salt is acidic, basic, neutral, or unpredictable.

A syringe contains 589 mL of CO at 325 K and 1.2 atm pressure. A second syringe contains 473 mL of N2 at 298 K and 2.6 atm. What is the final pressure if the contents of these two syringes are injected into a 1.00 L container at 0.00°C?

Which pair of elements can form an ionic compound? A) Two atoms of hydrogen B) One atom of sodium and one atom of fluorine C) One atom of calcium and one atom of chlorine D) Two atoms of hydrogen and one atom of oxygen