Which of the following statements best describes an electromagnetic wave with a short wavelength? A.)It has a low frequency and can travel in a vacuum (space)
B.)It has a high frequency and can travel in a vacuum (space
C.)It has a low frequency and can only travel in a medium
D.)It has a high frequency and can only travel in a medium

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.

Me with this and you will be marked brainliest

If a hiker that weighs 600 newtons climbs a 50 meter hill, how much gravitational potential energy has the hiker gained?