While a gymnast is in the air during a leap, which of the following quantities must remain constant for her? a) angular momentum about her center of massb) positionc) velocityd) momentume) angular velocity

Which surface feature of the moon is characterized by mountainous areas? terrae craters maria regolith

What is the temperature in degrees celsius of a substance with a tempature of 49k

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.