An 18 gram object with a specific heat of 0.900 J/g*C, and a temperature of 18 Celsius is heated up with a lamp. The temperature increases to 40 Celsius. How much heat energy did the object absorb?​

Sulfuric acid is a polyprotic acid. write balanced chemical equations for the sequence of reactions that sulfuric acid can undergo when it's dissolved in water.

Which three statements represent the benefits of performing experiments using computer simulations?

Two people each hold the end of a rope and create waves by moving their arms up and down. this wave is best classified as a transverse wave because a) both the rope particles and the wave are moving in the same direction. b) the wave is moving up and down as the particles of the rope move horizontally. c) the wave is moving horizontally as the particles of the rope move up and down. eliminate d) the wave is moving in a parallel direction with the motion of the person's arms.