¿Qué es la fuerza de atracción de los cuerpos? a. Fuerza que depende de la masa negativa que contienen los cuerpos.

b. Fuerza que tiende a acercar los cuerpos oponiéndose a su separación.

c. Velocidad que adquieren los cuerpos dado a su masa.

d. Aceleración que adquieren los cuerpos debido a su localización

8. why do radio telescopes convert radio waves (analog signals) to electrical (digital) signals for analysis? (hint: what did the article say about the advantages of digital signals? )

Aboy with a mass 25 kg climbs into a small tree. he sits on a branch that is 2.o m above to the ground.what is his gravitational potential energy above the ground?

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.