Review part a an object is 29.0 cm from a screen what are the radi of a symmetric converging plastic lens (ie, two equally ourved surtaces) that will form an image on the screen twice the height of the object? (take the index of refraction of plastic to be 1.59.) express your answer with the appropriate units.

Which planet do you think would be easiest for humans to colonize some day?

Object a has a length of 3 cm, a width of 2 cm, and a height of 4 cm. object b is dropped into a graduated cylinder. it displaces 19 ml of water. the volume of object a is: a: greater than the volume of object b b: less than the volume of object b c: equal to the volume of object b

Madison lives near the ocean. she’s formed a hypothesis that increased concentrations of salt in the air speeds the corrosion of certain metals. if madison plans to test this hypothesis, she will have to deal with the following variables in her experiment: dependent variable: independent variable: one possible confounding variable: