Awoman and her dog are out for a morning run to the river, which is located 4.0 km away. the woman runs at 2.5 m/s in a straight line. the dog unleashed and runs back-and-forth at 4.5 m/s between his owner and the river, until she reaches the river. what is the total distance run by the dog?

Picture a all traveling at a constant speed around the inside of a circular structure. is the ball accelerating? explain your answer

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.

Why is rain likely when warm, moisture-laden air meets cold air? a) the lighter warm air will rise and cool down, causing condensation and rain. b) the cold air moves faster and pushes the warm air away, causing condensation and rain. c) the moisture in the warm air condenses on contact with the cold air, causing rain to fall. d) the cold air mixes with the warm air, reducing its temperature causing moisture to condense.