What is the change in the total potential energy of the spring-mass-earth system (the horizontal rod is fixed, eventually, to the earth) as the mass moves the 21.0 cm upward from its release point? also, what is the speed of the mass after it has moved upwards by 21.0 cm from its release point?

What type of government does costa rica have?

Drag each label to the correct location on the image.the diagram shows the development of the oocyte and the follicle during the menstrual cycle. identify at which sare at their highest and most active.progesteronelevels highestrogen levelsconsistently riseluteinizinghormone levelshighdeveloping follicleoocytemature egg

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