A child releases a balloon at a park. The balloon travels up into the air 8.20 m, and east across the park a distance of 23.0 m, before getting stuck in a tree. Draw
a diagram representing this situation. What is the resultant displacement of the
balloon? Express your answer in components, and then determine the magnitude.

someone please explain

How would doubling the made of an object change the objects potential energy

If steel is more dense that lake water, why can a boat float

The magnitude of the amount of energy released by burning a fuel source, measured in energy per unit mass, is called its fuel value. note that the fuel value is the negative of the isobaric specific heat of combustion for the fuel. if all the energy obtained from burning 1.23 pounds of butane with a fuel value of 10.85 kcal/g is used to heat 128.0 kg of water at an initial temperature of 18.3 °c, what is the final temperature? note that 1 lb = 453.6 g.