A2.0-kg cart and an 8.0-kg cart are connected by a relaxed, horizontal spring of spring constant 300 n/m. you pull the 8.0-kg cart with some constant horizontal force. the separation between the carts increases for a short time interval, then remains constant as you continue to pull and the spring is stretched by 0.100 m. part awhat pulling force did you exert? assume that the direction of your pull is the positive direction. express your answer to two significant figures and include the appropriate units. part bif you instead pull the 2.0-kg cart, what force must you exert to get the same stretch in the spring? assume that the direction of your pull is the positive direction. express your answer to two significant figures and include the appropriate units.

an electric circuit

as we know our atmosphere or air have different levels. every level has other gasses, and every gas has another permeability. when the light comes from lower permeability to higher permeability, it changes its direction. so that means that when the light comes from the moon to the earth, it changes it's direction many more times. it basically means that the shape of the light part of the moon is changed on the earth.

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myth. it was once thought that animals, including cats and dogs, could only see in black and white. however, scientists have proven this to be a myth. in all animals, including humans, the perception of colour is determined by the presence of cells in the eye called cone photoreceptors.