How much thermal energy must be released from 25 grams of water at 40 degrees C to turn the water into ice at 0 degrees C? The latent heat of fusion of water is 80 calories/gram and the specific heat of water is 1 calorie/(gram * degree C).

a and b sometimes have a positive value

momentum of soft ball three times less than baskey ball

that tool is called an altimeter which measures your altitude which can be used to tell which atmosphere you are currently in, including the stratosphere.

hope this ! : )

conservation of mass

mass before something happens = mass afterwards