Aweather balloon is filled to a volume of 6000 l while it is on the ground, at a pressure of 1 atm and a temperature
of 273 k. the balloon is then released into the atmosphere. as the balloon rises, the pressure decreases to 0.3 atm
and the temperature decreases to 240 k. what is the final volume of the balloon at this temperature and pressure?
round your answer to the nearest tenth.

What happens to light waves from a star as the star moves away from earth?

This problem has been solved! see the answera non-uniform fire escape ladder is 6.0m long whenextended to the icy alley below. it is held at the top by africtionless pivot, and there is neglibible frictional force fromthe icy surface at the bottom. the ladder weighs 250n, and it'scenter of gravity is 2.0m along the ladder from the bottom. amother and child of total weight 750n are on the ladder 1.5m fromthe pivot. the ladder makes an angle θ with the horizontal. find the magnitude and direction ofa) the force exerted by the icy alley on the ladderb) the force exerted by the ladder on the pivotc) do your answers in part a and b depend on the angle?

Lin yao looks at the back of a spoon. how should she describe her reflection? upside down and smaller upside down and larger right-side up and smaller right-side up and larger