What is the answer to "A plane is basically a 2D surface. Think of a piece of paper with a happy face drawn on it. You can pick that paper up, face it in whatever direction you want, but unless you fold or roll the paper, the image is flat."

How many molecules are present in 3 mols of silicon dioxide (sio2)?

Global warming will produce rising sea levels partly due to melting ice caps but also due to the expansion of water as average ocean temperatures rise. to get some idea of the size of this effect, calculate the change in length (in m) of a column of water 1.45 km high for a temperature increase of 1.12°c. assume the column is not free to expand sideways. as a model of the ocean, that is a reasonable approximation, as only parts of the ocean very close to

If a car is traveling on the highway at a constant velocity, the force that pushes the car forward must be a. equal to the weight of the car. b. less than the force of friction exerted upon the car. c. equal to the force of friction exerted upon the car. d. greater than the weight of the car.