Iam confused on how to solve this problem. i did the work and got -0.18. explain the process to me!

when a 57-gram piece of aluminum at 100oc is placed in water, it loses 735 calories of heat while cooling to 30oc. calculate the specific heat capacity of the aluminum

Astudent is performing an experiment comparing sound and light waves. the student gathers the following data. what conclusion does the student most likely make based on this data? light waves always travel the same speed; however, the speed of sound is determined by the medium that it travels through. all sound waves always have the same energy, so the temperature of the medium does not affect wave speed. light needs to vibrate particles, so it travels fastest in tightly packed solids, while sound does not need a medium, so it travels fastest in a gas. tightly packed particles in solids slow down the light waves; however, sound waves make particles bounce into each other, so they travel faster in solids.

You can watch static electricity in action by rubbing an inflated balloon against your hair. your hair will actually stand on its end! it does this because each hair becomes charged, and they all repel one another.

Aball horizontally thrown from a cliff at 8m/s